Answer:
Mean = 203.167
Step-by-step explanation:
Mean = \(\frac{sum of observations}{total no. of observations}\)
Mean = \(\frac{153+230+354+38+180+264}{6}\)
Mean = \(\frac{1219}{6}\)
Mean = 203.167
Mrs. Summers polled the students in her 7th and 8th grade classes to determine the number of pets each student has at home. The results for both classes are shown in the dot plots below. Calculate the mean and mean absolute deviation of each sample. Then, complete the following question.
The mean number of pets for the 8th grade class is about 1.4 pets____ than the mean number of pets for the 7th grade class. This difference is about____ the mean absolute deviation of either group.
A. higher, lower?
B. same as, twice, half?
Answer: A
Step-by-step explanation: mean in math terms mean everything added together on a graph we now have an 8th grade class and a 7th grade class the 7th-grade class has 67 pets 6+14+15+16+10+6=67 and the 8th-grade class has 121 pets 3+8+21+36+35+18=121 so it would be A.
the mean number of pets for the 8th-grade class is about 1.4 pets higher than the mean number of pets for the 7th grade class. This different is about lower the mean absolute deviation of either group.
P.S. pay attention in math claass kids
What would 28 out of 30 be as one out of one hundred percentage?
Answer:
Convert 28/30 to Percentage by Changing Denominator
Our percent fraction is 93.333333333333/100, which means that 2830 as a percentage is 93.33%.
Answer:
93.333%
Step-by-step explanation:
What is the reciprocal of 18/7?
a 8/17
b 17/8
c 7/18
d 18/1
7th grade math I'll give brainliest
Answer:
Step-by-step explanation:
Rise over run is the slope, m
m=2/5
a) the slope is 2/5 = .4 which is below the boundary guideline. So no this is not with in carpenter's guidelines
b) the image below show a line with slope 2/5 but with intercept 3
c) the stairs can be draw on the line with rise 2 run 5 from the line. see image
d)equation is in image
2.
a) count the squares
horizontal distance =3
vertical distance =3
b) slope is vertical distance over horizontal distance so m= 3/3 =1
ANSWER PLEASE BEFORE 2/14!!!!
Tamara likes to go hiking and tries to hike for at least 30 minutes every week. On Tuesday, she hiked for 1 mile in the morning and 3 miles in the evening. On Thursday, she hiked with a friend for 4 miles. On Saturday she hiked for 5 miles. On Sunday, she hiked for 4 miles. She also hiked for an extra 10 minutes on Sunday night. If she hiked for a total of 350 minutes all week and it takes her the same amount of time to hike each mile, how many minutes does it take her to hike each mile?
Answer:
20 minutes
Step-by-step explanation:
1+3+4+5+4=17
350-10=340
340÷17=20
please give me an explanation :( im rlly stuck
Answer: x= 13
Step-by-step explanation: The reason it = 13 is because the side show 13 and they are the same size which mean it is 13 btw your stuck? that is kinda sus
7 x 8y - (2x ÷ 5)
factorize
Hii.
I'm here to help!
First, we need to work with parenthese. Rembering "Pemdas"
Multiply 7 and 8 to get 56.
56y− 2x/5
To add or subtract expressions, expand them to make their denominators the same. Multiply 56y times 5/5
5x56y
------------ -2x/5
5
Since 5x56y over 5 and 2x over 5 have the same denominator, subtract them by subtracting their numerators.
5 x 56y -2x over 5
Do the multiplications in 5×56y−2x.
280y−2x over 5
7×8y−(2x÷5)
Factor out
5
2
.
5
2(140y−x)
Hope this helps :D
Answer:
-2/5x + 56y
Step-by-step explanation:
(7)(8)y - 2x/5
= 56y + -2/5x
Hope I helped :)
Please help and you get a cake
Answer:
Mean = 33.7
Median = 34.5
Mode = 34
Range = 33
After adding 26....
mean decreases by 0.7
median decreases by 0.5
mode is 34
range is 33
Step-by-step explanation:
mean = sum of all the data values/number of data values
= (18 + 19 + 20 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/10
= 337/10
= 33.7
To find median arrange the values in increasing order, find the mid value
If the number of data points is even, find the average of the mid 2 data values
Arranging data values we get:
18, 19, 20, 34, 34, 35, 37, 42, 47, 51
Since there are 10 data values, take the average of the middle two:
(34 + 35)/2 = 34.5
The mode is the value that occurs most often. We see that there are two instances of 34 whereas the other values appear only once
Mode = 34
The range is highest - lowest = 51 - 18 = 33
After we add 26, we get the following data set arranged
18, 19, 20, 26, 34, 34, 35, 37, 42, 47, 51
we can calculate the stats using the same technique as above
We get the following values
mean = )(18 + 19 + 20 + 26 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/11
= 33
median = 34
mode = 34
range = 51-18 = 33
To find the decrease in mean and median subtract from the first set of values
Can someone help me solve this?
Answer:
p + q = (-2) --------(1)
p - q = 8 ----------(2)
on simplifying both equati
8 + q = (-2)-q
q + q = (-2) -8
2q = (-10)
q = (-10)/2
q = (-5)
putting the value of q = (-5) in the equation
p + (-5) = (-2)
p = (-2)+5
p = 3
hence, p = 3 , q = (-5)
What is the volume help please
Answer:
Hi there! Your answer would be 136.08, because you must times all 3 numbers they give on the picture.
Step-by-step explanation:
Answer:136.08
Step-by-step explanation:
PLS HELP!!!! WILL MAKE BRAINLIEST!!
Answer:
(-1,-3)
Step-by-step explanation:
it's where the ponts at
Answer:
The slope is -3
Step-by-step explanation: Use rise over run
rise/ run = -3/1
so the slope is -3
Grace thinks of a mixed number. She multiplies it by 3. 1 Then she subtracts 7- 3 Then she divides by 5. 3 Her answer is 4 What mixed number did Grace start with?
first answer thats correct ill give brainliest
Answer: hi I think answers this but I might be wrong 19 9/100
Step-by-step explanation:
we have to do inverse operations!
hope this helps!
pls vote for brainliest!!
PLS HELP QUICK!!!! THE FIRST CORRECT ANSWER GETS BRAINLYIEST!!
Answer:
Angel 1- 112
Angel 2- 68
Angel 3- 68
Angel 4- 112
Brainlyiest Ty
identify the errors
(Select all that apply.)
Calculation errors when distributing -1
Calculation errors when distributing h2
Calculation errors when distributing 9h
Calculation errors when combining h2 terms
Calculation errors when combining h terms
Answer:
1 and 3
Step-by-step explanation:
Answer:
i think i and 3 prolly :0
Step-by-step explanation:
The graph shows the number of hours that Tammy spends typing for work, x, and the amount of pay that she earns, y.
On a graph titled Tammy's Pay, number of hours is on the x-axis and pay in dollars is on the y-axis. A line goes through points (2, 18) and (8, 42).
What does the y-intercept represent?
Answer: The y-intercept is the initial amount Tammy earns.
Step-by-step explanation:
Always remember that for graphs, the y-intercept is the initial amount. In this case, it would be the initial amount or the very first amount Tammy earns. If the line goes through the origin (0,0), that means that Tammy earns $0.00 for 0 hours of working.
Jessica has 75% as much money as James does. James has $24. How much money does Jessica have?
Answer:
Jessica has $18
Step-by-step explanation:
75% of 24 or divided by is 18
Answer:
18
Step-by-step explanation:
\( \frac{75}{100} \times 24 = 18\)
i think this is the answer.sorry if I'm wrong
A bookstore manager marks down the price of older hardcover books, which originally sell for b dollars, by 36%.
What is the sale price of a hardcover book for which the original retail price was $36.00?
The sale price is $____
THE EQUATION IS b-0.36b
Answer:
$31.02
Step-by-step explanation:
Find the amount of the discount:
47 x 0.34 = 15.98
Subtract the discount from the original price:
47 - 15.98 = 31.02
Kat runs 3 1/2 miles in 3/4 of an hour. What is her unit rate? Use fractions to find out and express your answer as a mixed number in miles per hour.
50 points!
Answer:
This is a fraction equal to
30 miles ÷ 2.5 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 2.5
30 miles ÷ 2.5
2.5 hours ÷ 2.5
=
12 miles
1 hour = 12 miles hour = 12 miles per hour
Step-by-step explanation:
Please Help Me
A. Its sides are 2 units longer than those of the original square.
B. Its sides are 1/2 as long as those of the original square.
C. Its sides are 2 times as long as those of the original square.
D. Its sides are 2 units shorter than those of the original square.
Answer:
C
Step-by-step explanation:
A dilation is either an increase or a decrease the scale factor is what determines what is and whatever the scale factor is you multiply it by the length or width of the square since it's a square it does not matter bc all the sides are equal
How far did John travel if he went 15 km/h in 2.5 hours?
Answer:
He traveled 37.5 km
Step-by-step explanation:
15km/h in 2.5 hrs
2.5*15
37.5
Answer:
37.5 kilometers
Step-by-step explanation:
Do both number 1 & 2 please.
Answer:
1. 6 and 9 2. is 91$
Step-by-step explanation:
Regroup to express the number in a different way.
71,830 =7 ten thousands + 1 thousand + 8 hundreds + 3 tens
71,830 =6 ten thousands + ★ thousands + hundreds + 3 tens
★ = ________
Answer:
70000+1000+800+30
60000+1000+100+30
if its wrong i am sorry
Find the area of Figure 1.
A.10 units2
B.25 units2
C.7.5 units2
D.15 units2
Find the area of Figure 3.
A. 15 units2
B. 7.5 units2
C. 25 units2
D. 10 units2
PLEASE ASAP PLEASE!!!
Answer: Figure 1 is A and Figure 3 is D
Step-by-step explanation:
Length for figure 1 is 10 units and the width is one, using the formula a=l*w
10=1*10
Length for figure 3 is 5 units and the width is 2 a=l*w 10=5*2
Find the area of the following figure. get brainliest if correct<3
312 cm2
252 cm2
300 cm2
400 cm2
Answer:
312
Step-by-step explanation:
because when you add the triangles and rectangles together you get 312
explain why 0.32 is greater than 0.102
Answer:0.32 is closer the the number one then 0.102 is
Step-by-step explanation:
Answer:
0.32 is greater than 0.102
Step-by-step explanation:
Because the more numbers behind the decimal the lower it is
EX. 0.1 is greater than 0.472648726464364872648264
Shelby deposited $1,000 in a savings account with simple interest. Two years later, she had earned $80 in interest. What was the interest rate?
pls explain in simple terms
Answer:
4 %
Step-by-step explanation:
simple take 80 times by 100 then divide by 1000 times by 2
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.
pls helpASAP!!!
3x+ 12 = 2(8+ 4x)
\(3x+12=2(8+4x)\) distribute
\(3x+12=16+8x\\\) collect like-terms
\(3x-8x=16-12\\-5x=4\\x=-\frac{4}{5}=-0.8\)
x = - 4/5
Step-by-step explanation:3x + 12 = 2(8 + 4x)
3x + 12 = 16 + 8x
12 - 16 = 8x - 3x
- 4 = 5x
x = - 4/5
he scatter plot and line of best fit below show the length of 14 people's femur (the long leg bone in the thigh) and their height in centimeters. Based on the line of best fit, what would be the predicted femur length for someone with a height of 229 cm?
Priya and Han are biking in the same direction on the same path.
a.Han is riding at a constant speed of 16 miles per hour. Write an expression that shows how many miles Han has gone after t hours. 16t
b. Priya started riding a half hour before Han. If Han has been riding for t hours, how long has Priya been riding? T+30
c. Priya is riding at a constant speed of 12 miles per hour. Write an expression that shows how many miles Priya has gone after Han has been riding for t hours.
d. Use your expressions to find when Han and Priya meet.
Answer:
Step-by-step explanation:
jjj