HELP ME WILL MARK BRIANLEST Molly and Maddie are clothes shopping. Molly has $100.00 and a coupon for a $5.00 discount at a clothing store where each shirt costs $15.00. Molly thinks that she can buy 8 shirts, but Maddie says that Molly can buy 7 shirts. The equations they used to model the problem are listed below.
Solve each equation algebraically, justify your steps, and determine who is correct and why.
Molly's equation
15x + 10 = 100
Maddie's equation
15x - 10 = 100
Answers
Molly's equation
15x + 10 = 100
-10 -10
15x=90
/15 /15
x=6
Maddie's equation
15x - 10 = 100
+10 +10
15x=110
/15 /15
x=7 1/3
MADDIE IS RIGHT
this is because she said 7 ans=d you cannot buy 1/3 of a shirt.
give the guy under me the 5 stare and a thanks this is his answer
Answer:
Molly's equation
15x + 10 = 100
-10 -10
15x=90
/15 /15
x=6
Maddie's equation
15x - 10 = 100
+10 +10
15x=110
/15 /15
x=7 1/3
MADDIE IS RIGHT
this is because she said 7 ans=d you cannot buy 1/3 of a shirt.
Related Questions
The box plot shows the number of years during which 16 schools have participated in a marching band competition: A box plot is titled Years of Participation and labeled Years. Number line from 0 to 10 with primary markings and labels at 0, 5, and 10. The box extends from 3 to 7 on the number line. There is a vertical line at 5. The whiskers end at 1 and 10. At least how many schools have participated for 3 to 7 years? (4 points) 3 schools 5 schools 7 schools 8 schools
Answers
*see attachment showing the box plot
Answer:
8 schools
Step-by-step explanation:
In a typical box plot, data set are usually represented and denoted by quartiles in almost equal proportion. That is, 25% of the data set falls between the min and the Q1 value. From Q1 to median value, we have about 25%. From median to Q3, we have 25%, and from Q3 to the max, we have about 25%.
In the box plot given, we have:
Schools that have participated for at least 3 - 7 years fall within Q1 (3) and Q3 (7). Therefore, we have about 50% of the total number of schools that have spent 3 to 7 years.
No of schools that have spent at least 3 - 7 years = \( \frac{50}{100}*16 = 8 schools \)
Answer:
8 schools
Step-by-step explanation:
I took the test and got it right.
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
The circumference of a circular park is approximately 18 feet. What is the approximate area inside the circular park?
Answers
Answer:
25.685 square feet.
Step-by-step explanation:
Circumference = 2 * π * radius
From this, we can derive the formula for the radius:
radius = Circumference / (2 * π)
Let's substitute the value of the circumference and calculate the approximate radius:
radius = 18 / (2 * π)
radius ≈ 18 / (2 * 3.14159)
radius ≈ 2.865 feet
Now that we have the approximate radius, we can calculate the area:
Area ≈ π * radius²
Area ≈ 3.14159 * (2.865)²
Area ≈ 3.14159 * 8.193225
Area ≈ 25.685 square feet
Therefore, the approximate area inside the circular park is approximately 25.685 square feet.
C = 2πr
where C is the circumference and r is the radius of the circle.
In this case, we are given that the circumference is approximately 18 feet, so we can set up the following equation:
18 = 2πr
Solving for r, we get:
r = 9/π ≈ 2.864 feet
Now we can use the formula for the area of a circle:
A = πr^2
Substituting the value we found for r, we get:
A = π(2.864 ft)^2 ≈ 25.85 ft^2
Therefore, the approximate area inside the circular park is approximately 25.85 square feet.
A table of values of a linear function is shown below. Find the output when the input is n. Type your answer in the space provided.
I need the 5th output, I'll give brainiest
Answers
Answer:
the equation is f(x)4x+2
if the input is a generic number n, the output will be 4n+2
Step-by-step explanation:
This is the graph of f(x) = x+A/x+B. The grid lines in the graph are one unit apart. What is the value of A/B
Answers
The value of A/B is given as follows:
A/B = -2.
What are the asymptotes of a function f(x)?The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.The horizontal asymptote is the value of f(x) as x goes to infinity, as long as this value is different of infinity.From the graph, the function has a vertical asymptote at x = 1, hence the value of B is given as follows:
B = -1 -> as x + B = 0 -> x = -B = -1.
When x = 0, y = -2, hence the value of A is obtained as follows:
A/-1 = -2
A = 2.
Then the division is given as follows:
A/B = 2/-1 = -2.
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Eddie and his 3 friends are each bringing 6 fudge brownies to the party. Which equation would describe n, the total number of fudge brownies Eddie and his friends are bringing to the party?
A. 6 × 4 = n
B. 6 ÷ 4 = n
C. 6 + 4 = n
D. 6 - 4 = n
Answers
Answer:
A. 6*4=n
3 friend + eddie =4 people
6 fudge brownies each
= 6 * 4
13+14=3xf; f=9 what is the answer
Answers
Answer:
x = 1
Step-by-step explanation:
1) plug the given f-value into the equation
13 + 14 = 3xf; f = 9
13 + 14 = 3x(9)
2) isolate x
27 = 3 · 9 · x
27 = 27x
1 = x
x = 1
A certain forest covers an area of 2900 km. Suppose that each year this area decreases by 8.5%. What will the area be after 8 years?
Use the calculator provided and round your answer to the nearest square kilometer.
Answers
Answer:
1425 square kilometer.
Step-by-step explanation:
2900 - 8.5% = 2653.5
2653.5 - 8.5% = 2427.9525
2427.9525 - 8.5% = 2221.5765375
2221.5765375 - 8.5% = 2032.74253181
2032.74253181 - 8.5% = 1859.95941661
1859.95941661 - 8.5% = 1701.8628662
1701.8628662 - 8.5% = 1557.20452257
1557.20452257 - 8.5% =1 424.84213815 ≈ 1425
HELP ASAP
What is −10y − 19 if y is 9?
BTW this is FLVS
Answers
Answer: -109
Step-by-step explanation:
1st we would replace y with 9: -10(9)-19
2nd we would simplify to -90-19
3rd we solve and get -109
2nd we would simplify to -90-19
3rd we solve and get -109
can someone please actually help me?
and not answer just for points.
The total cost of the trip can be found by adding these components:
Entrance fee per student: $5(29)
Lunch costs: $4(29 + 6)
Bus fees: $25 + 8($2 + $3)
Total cost:
5(29) + 4(35) + 25 + 8(5)
Which of these are equivalent expressions of the total cost that use the properties of operations to simplify the math?
5(15 + 14) + 4(31 + 4) + 25 + 40
5(20 + 9) + 4(30 +5) + 25 + 40
5(17 + 12) + 4(33 + 2) + 25 + 40
5(19 + 10) + 4(34 + 1) + 25 + 40
Answers
it meanse 3io2eiprfejfk3mrnfk3fopk1emkfn3j vj answer is 3
Step-by-step explanation:
It should be B. 5(20+9)+ 4(30+5)+ 25+ 40
The reason why I say that is because 5(29) you would have to Multiply 20 to 5 and 9 to 5 to get the answer. Then 4(35) will also be split 4(30+5) and do the same. And the 25 would stay the same. And 8(5) is also knows as 8 x 5 which gives you 40.
9.
Pentagon ABCDE is similar to pentagon RSTUV. The perimeter of pentagon ABCDE is 36.8 centimeters.
What is the length of ST ?
18 cm
25.8 cm
15 cm
19.8 cm
Answers
Answer:
15cm
Step-by-step explanation:
Since BC is like ST but smaller, we have to find the length of BC then find the proportion for ST.
Length of BC = 36.8 - 4.4 - 13.2 - 2.2 - 11
= 6
Scale = \(\frac{33}{13.2}\)
Length of ST = \(\frac{33}{13.2}\) × 6
= 15
The length ST of the pentagon RSTUV is 7.36 centimeters.
What is pentagon?A polygon with 5 sides is a pentagon. The total sum of the internal angles of a pentagon is 540°.
Given is that Pentagon ABCDE is similar to pentagon RSTUV.
Since the pentagon ABCDE is similar to the pentagon RSTUV, we can conclude that the perimeter of the pentagon ABCDE is similar to that of pentagon RSTUV. Now, the sides of the pentagon are equal in length. So, we can write that -
ST = Perimeter/5
ST = 36.8/5
ST = 7.36
Therefore, the length ST of the pentagon RSTUV is 7.36 centimeters.
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Find the number with the following arithmetic square root. 0.
Answers
Answer:
0 (\(\sqrt{0}\) = 0)
Step-by-step explanation:
If 0^2 = 0 because 0 x 0 = 0, then the reverse function (square root) would result in 0.
A car travels at 6 m/sec accelerates to 8 m/sec in 4 seconds. It maintains that speed for 2 seconds and then slows to a stop. Draw the graph of the car’s speed over time.
Answers
Answer:
car starts at 6 meters per sec and accelerates to 8 meters per sec in 4 sec then stops completely and reaches velocity 0 meters per sec
Im having trouble on this
Answers
Answer:
30% chance or (6/20)'s
Step-by-step explanation:
6 out of the 20 simulations were picked, coconut. Which means the probability of picking one is a 30% chance or (6/20)'s
Each day, Martina records the number of news articles she reads. Here are her results for the last nine days.
Answers
Answer:
martin
Step-by-step explanation:
Explanation: the range is the difference between the highest value in a set by the lowest, in this case 8-1
Answer (mode): 6
Explanation: the mode is the value that appears most frequently in a data set, in this case it is 6 because it appears 5 times in this set
Instructions: Evaluate each algebraic expression when x=0 and when x=1. Use results to match each expression in the left table with its equivalent expression in the right table.
I only need the highlighted ones (a,c,e,g,i)
Answers
Answer:
Step-by-step expalination:
1,C=-4,C=0
2,E=-13,E=-8
3,G=2,G=3
4,I=2,I=1
V to the power of 2 = 47
(I'M IN CLASS HELP THERES 6 MINUTES LEFT)
Answers
Answer:
Well even though you dont need it now the answer is v = 42 squared
Step-by-step explanation:
I used g00g1e like a normal person would
In order to isolate V, we must square root each side.
V^2√2 = 47√2
V = 6.855654600401044 or 6.9 rounded
Hope this helped!
Two boxes are shown below
What is the difference in the surface areas, in square feet, of the two boxes?
Answers
Answer:
Option (B):3
Step-by-step explanation:
S.A of Box J =57ft^2 ; using formula 2(lb+lh+hb)
S.A of BoxF=54Ft^2;using formula (6a^2)
Differenceof S.A of boxes:57-54=3
What is the area of a square with a perimeter of 55 cm
Answers
Answer:
Step-by-step explanation:
A= 189.06cm2
Answer:
Step-by-step explanation:
189.06cm2
Consider the situations in the table below
Situation A: A hang glider descended 33.57 feet, and then ascended 14.98 feet.
Situation B: A football team gained 7 2/5 yards in one play, and then lost 3/5 of a yard in the next play.
Situation C: A hiker walked 3 1/6 miles yesterday and 2 1/2 miles today.
Situation D: A worker earned $23.66 Monday and spent $15.84 Tuesday.
Calculate the sum of each situation. Order the situations from least to greatest based on the numeric value of the sums.
Answers
Answer:
Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet
Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.
7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.
Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.
Situation D: Total amount earned is $23.66 + $15.84 = $39.5.
Answer:
Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet
Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.
7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.
Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.
Situation D: Total amount earned is $23.66 + $15.84 = $39.5.
Step-by-step explanation:
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
Answers
please help!!!!!!!!!!!!!!!!1
Answers
Step-by-step-solution:
d+6c when d=5, c=4
We can rewrite this as:
5+6(4)
Since 6 is being multiplied by c, which is 4, and d=5
Now we can solve:
5+24
=29
6 times 4 is 24, and then you just have to add 5, which gets you 29.
Hope this helped!
Answer: 29
Step-by-step explanation: We first replace the variables with the numbers so it turns into 5 + 6 x 4 and according to the order of operations we do 6 x 4 first which is 24 and then we do 5 + 24 which is 29.
If Point B(-3, -6) is translated right 5 units, then rotated 180˚, what are the coordinates of B'?
Answers
Answer: (-2, 6)
Step-by-step explanation:
Step by step explanation:
I will give brainliest if you answer it!!
Answers
Answer:
B, C and D all appear to be repeating decimals
Step-by-step explanation:
solve for all the letters. urgent!
Answers
Answer:
Step-by-step explanation:
B: -223.75
C: -1.40
D: -4.40
Brainliest?
The exact sum of 7/15 + 9/15 + 4/15
Answers
Answer: 4/3
Step-by-step explanation:
When you have a common denominator (15) you can add the numerators. 7+9+4 = 20
20/15
Then you can simplify, both the numerator and denominator are divisible by 5.
20/5 = 4
15/5 = 3
So your answer is 4/3
Answer:
\( \frac{4}{3} \)
Step-by-step explanation:
7/15+9/15+4/15
=7/15+3/5+4/15
=16/15+4/15
=4/3
I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answers
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
Irene is opening a lawn equipment rental business, She does not know how much equipment she needs to purchase, but she does know the cost of the equipment.
Which of the following expression represents Irene’s total cost to purchase her equipment?
A.) 195(x+y+100z)
B.)195(x+y+z+100)
C.)195(x+y+z)+100z
D.)195+x+195+y+295+z
Answers
Answer:
Step-by-step explanation:
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
PLEASE HELP! Which table of values corresponds to the graph below? On a coordinate plane, a line goes through points (0, 0), (3, 1), and (6, 2). A 2-column table with 4 rows. Column 1 is labeled x with entries negative 3, 0, 3, 6. Column 2 is labeled y with entries negative 1, 0, 1, 2. A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled y with entries negative 3, 0, 3, 6. A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 6. Column 2 is labeled y with entries negative 1, 0, 1, 2. A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled y with entries negative 1, 0, 1, 6.
Answers
Answer: the awnser is B
Step-by-step explanation: First look at it nothing can be above 0 so if the graph has 1 before 0 its wrong then u have completed one step of the equation.
The data which satisfies the line is Option B.
What is the standard equation of a line?The standard equation of a line is given by
y = mx+c
Here m is the slope and c is the y intercept
The slope can be determined by
m = (y₂ -y₁)/(x₂ -x₁)
The line passes through points (0, 0), (3, 1), and (6, 2).
m = 1/3
y = (1/3)x +c
c = 0
y = (1/3) x
The points in the table are substituted and then the data which satisfies is determined.
Column 1 Column 2
X Y
-1 - 3
0 0
1 3
2 6
This table satisfies the line.
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