Answers
Answer:
8.
Denote the equation : y = ax + b
Use the first 2 values of x and y in table:
3a + b = 21
5a + b = 35
Subtract the 2 equations:
=> 2a = 14 => a = 7 => b = 21 - 3 x 7 = 0
=> The solution is y = 7x
9.
Denote the equation : y = ax + b
Use the first 2 values of x and y in table:
5a + b = 17
10a + b = 22
Subtract the 2 equations:
=> 5a = 5 => a = 1 => b = 17 - 5 x 1 = 17 - 5 = 12
=> The solution is y = x + 12
Hope this helps!
:)
Related Questions
Laura ate 5/8 of the pizza her mom brought home. What percentage of the pizza was left?
Answers
Answer:
37.5
Step-by-step explanation:
dang laura
Flora has a rectangular gift box that has a volume of 24 cubic inches. The box is 2 inches tall. Determine if the gift box could have the given length and width.
a. Length: 11 inches; Width: 11 inches___
b. Length: 4 inches; Width: 3 inches___
c. Length: 10 inches; Width: 2 inches___
Answers
Please help me! Write the answer And the explanation please!! :)
Answers
Answer:
B. 8=2+2a and 3=a
Step-by-step explanation:
1. Look at the scale. On the left side we have 8, on the right side we have 2a + 2.
The two balance each other out perfectly, therefore they're equal.
2. We write our equation.
8=2a+2
3. we substract 2 from the right side so only the '2a' will be left. but if we do something to the right side, we do the same to the left. So, -2 from both sides.
8=2a+2 /-2
6=2a
4. Now we know that 2a=6, but we need to know much much one 'a' is, so we divide by 2.→ divide both sides by 2, so only the 'a' is left on one side, and only a number on the other.
6=2a. /÷2
3=a → this is your answer.
Antwan determines the distance between the numbers –7 and 2. Maggie determines the difference between –7 and 2. How are Antwan’s and Maggie’s solutions related?
A. Maggie’s solution is the absolute value of Antwan’s solution.
B. Antwan’s solution is the absolute value of Maggie’s solution.
C. Both solutions are greater than either of the two numbers in the problem.
D. Both solutions are less than either of the two numbers in the problem.
Answers
Answer:
Well the awnser is B:Antwan’s solution is the absolute value of Maggie’s solution.
Step-by-step explanation:
Kkkkkkkkkkkk
3x
2
=27 Select all that applies!
x = 9
x = 3
x = -9
x = -3
Item at position 2
2
10 points
2x^2-17=1832x
2
−17=183
\pm10±10
\pm5±5
\pm7±7
\pm100±100
Item at position 3
3
10 points
In the equation x^2=36x
2
=36, there is only one solution and that solution is x = 6
True
False
Answers
What is the exact volume of the cylinder?
Enter your answer, in terms of π, in the box.
in³
Answers
Answer:
320 pi
Step-by-step explanation:
64 pi times 5 is 320 pi
What is the solution to the following system of equations: 2x + 3y = 5 AND 5x = 5y -25
Answers
Answer:
point form (-2,3)
Equation form
x=-2, y=3
Step-by-step explanation:
solve for the first variable in one of the equation, then substitute the result into the other equation.
Answer:
(-2,3)
Step-by-step explanation:
5x=5y-25
x=y-5 divide both sides by 5
use substitution.
2(y-5)+3y=5
2y-10+3y=5 distribute the parenthesis
5y-10=5 combine like terms
5y=15 add 10 to both sides
y=3 divide both sides by 5 to get y alone
5x=5(3)-25 replace y with 3, the value we found above
5x=15-25 multiply 5 and 3
5x=-10 subtract 25 from 15
x=-2 divide both sides by 5 to get x alone
Which algebraic expression represents “the product of a number and five”?
Group of answer choices
5 + n
5n
n - 5
5/n
Thanks!
Answers
Answer:
Step-by-step explanation:
Multiplication is the process of determining the product of two or more numbers in mathematics.
The correct answer is option 2 which is the product of a number and five.
Product = 5 n
It means that n is five times.
i need help on this please
Answers
Answer:
12 and 38, maybe 42
Step-by-step explanation:
Answer:
24, 48, 72
Step-by-step explanation:
4. At Rory’s school, students must join one after-school club. Based on the data in Graph #2, which club attracted about 30% of students?
A. yearbook
B. art
C. drama
D. hiking
E. running
F. science
5. Approximately What percent of students chose not to join the yearbook club?
A. 15%
B. 30%
C. 75%
D. 85%
E. 90%
6. About what percent of students joined the art club?
A. 30%
B. 25%
C. 20%
D. 15%
E. 5%
Answers
I neeed help this is due today at 4:30
Instructions
In this experiment, you will be using two different coins as a simulation for a real-world compound event.
Suppose that a family has an equally likely chance of having a cat or a dog. If they have two pets, they could have 1 dog and 1 cat, they could have 2 dogs, or they could have 2 cats.
What is the theoretical probability that the family has two dogs or two cats?
Describe how to use two different coins to simulate which two pets the family has.
Flip both coins 50 times and record your data in a table like the one below.
Result
Frequency
Heads, Heads
Heads, Tails
Tails, Heads
Tails, Tails
Total
50
Based on your data, what is the experimental probability that the family has two dogs or two cats?
If the family has three pets, what is the theoretical probability that they have three dogs or three cats?
How could you change the simulation to generate data for three pets?
Answers
Answer: 1/3
Step-by-step explanation: there you go :)
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
Answers
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
um i think is 10.23kg
Step-by-step explanation:hope this helps u
Answer: I am 96% its 10.23kg
Hopes this helps please and again please put down as brainlist.
Need it asap please and thank you, will give brainly if correct
Answers
Answer:
Step-by-step explanation:
(a) EAF
(b) ∠CAB
(c) ∠CAE
(d) ∠CAD
Hope it helped. Pls mark me the BRAINLIEST! Don't fool pls
alan is converting large and small numbers from standard notation to scientific notation. group the numbers according to their powers of 10
Answers
Answer:
i am kind of confused by the question but i would say to but all the numbers below 1 in the 10^-4 section and the numbers above 1 in the 10^6.
i might be wrong i don't what the question is really.
Step-by-step explanation:
Alan is converting large and small numbers from standard notation to scientific notation
10⁶ = 4.03 x 10⁶, 2.93 x 10⁶, 5 x 10⁶
10⁻⁴ = 1.2x 10⁻⁴, 6 x 10⁻⁴, 5.9 x 10⁻⁴
What is the scientific notation of a number?The standard form for a number is a method by which we write number in a format like b×10ˣ. The value of b should be in between 0 to 10.
Given that,
The numbers,
0.00012, 4030000, 2930000, 0.0006, 5000000, 0.00059
Taking number, 0.00012
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 10000 into the number 0.00012,
⇒ 0.00012 x (10000/10000)
⇒ (0.00012 x 10000)/10000
⇒ 1.2/10000
⇒ 1.2x 10⁻⁴
Similarly,
0.0006 can be written as 6 x 10⁻⁴
And 0.00059 can be written as 5.9 x 10⁻⁴
Now taking number, 4030000
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 1000000 into the number 4030000,
⇒ 4030000 x (1000000/1000000)
⇒ (4030000 / 1000000) x 1000000
⇒ 4.03 x 1000000
⇒ 4.03 x 10⁶
Similarly,
2930000 can be written as 2.93 x 10⁶
And 5000000 can be written as 5 x 10⁶
To know more about scientific notation check:
https://brainly.com/question/4953486
#SPJ5
If one book is 2.3 inches wide and another is 1.049 inches wide, how much wider is the first?
Answers
Answer: 1.251
Step-by-step explanation:
umm please help! algebra question
Answers
i think the answer is 6/7
(2x-10)(x+3)+(x3+1)(x-4) what does it equal to
Answers
Answer:
Step-by-step explanation:
Use FOIL method.
(2x - 10)(x + 3) = 2x*x + 2x*3 + (-10)*x + (-10)*3
= 2x² + 6x - 10x - 30 {Combine like terms}
= 2x² - 4x - 30
(x³ + 1)(x - 4) = x³*x + x³ *(-4) + 1*x + 1*(-4)
= x⁴ - 4x³ + x - 4
(2x - 10)(x +3) +(x³ +1)(x - 4) = 2x² - 4x - 30 + x⁴ - 4x³ + x - 4
Combine like term
= x⁴ - 4x³ + 2x² - 4x + x -30 - 4
= x⁴ - 4x³ + 2x² - 3x - 34
Answer:
Use the FOIL method.
(2x - 10)(x + 3) = 2x*x + 2x*3 + (-10)*x + (-10)*3
= 2x² + 6x - 10x - 30 {Combine like terms}
= 2x² - 4x - 30
(x³ + 1)(x - 4) = x³*x + x³ *(-4) + 1*x + 1*(-4)
= x⁴ - 4x³ + x - 4
(2x - 10)(x +3) +(x³ +1)(x - 4) = 2x² - 4x - 30 + x⁴ - 4x³ + x - 4
Combine like term
= x⁴ - 4x³ + 2x² - 4x + x -30 - 4
= x⁴ - 4x³ + 2x² - 3x - 34
Step-by-step explanation:
por nada!!!
Write an inequality and use substitution to solve the following problem:
A couple is remodeling a room in their house. They have already purchased carpet for the room for $2,000. If their budget is a maximum of $5,100, determine which of the following costs they can afford for a furniture set.
Check all that are true.
$7,100
$3,050
$3,400
$5,300
$5,100
Answers
Answer:7100
Step-by-step explanation:
Answer: the answer is 7100 your welcome!!!!!
HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Hope this helps :)
Answer:w-6
Step-by-step explanation:
Which point is a reflection of (1.5, -4.5) across the x-axis and the y-axis?
A.
point I
B.
point J
C.
point K
D.
point L
E.
point M
Answers
Answer:
(1.5, 4.5 ) and (- 1.5, - 4.5 )
Step-by-step explanation:
Under a reflection in the x- axis
a point (x, y ) → (x, - y ) , then
(1.5, - 4.5 ) → (1.5, 4.5 )
Under a reflection in the y- axis
a point (x, y ) → (- x, y ) , then
(1.5, - 4.5 ) → (- 1.5, - 4.5 )
If x- axis then y- axis
(1.5, - 4.5 ) → (1.5, 4.5 ) → (- 1.5, 4.5 )
plssss helppp meeeeeee
Answers
Answer:
x = 4Step-by-step explanation:
4.5x = 18
x = 18 : 4.5
x = 4
-----------------------
check
4.5 * 4 = 18
18 = 18
the answer is good
I need help with this please!!
Answers
Answer: i also nerd help
Step-by-step explanation:
The table shows the results of randomly selecting a colored cube from a bag 80 times. The cube was returned to the bag after each selection.
Based on these results, what is the expected probability of randomly selecting a red cube from the bag in one attempt?
A) 0.20
B) 0.04
C) 0.24
D) 0.30
Answers
1. Find the area of the parallelogram with the base B and the height H
B= 82 cm
H= 16.6 cm
A. 1,361.2 cm^2
B. 6,724cm^2
C. 137.78 cm^2
D. 98.6 cm^2
Answers
A. 11,361.2 cm^
If a car rolled down a 25-meter ramp, continued rolling another 20 meters at the bottom, then reversed and went back to the top of the ramp, what is the car's displacement? What is the car's distance traveled? Explain
I will give brainliest!
Answers
Displacement = 0
Distance = 90
Explanation:
Displacement refers to the overall change an object has made in its position. The car is right back where it started, so the answer is 0.
To calculate total distance, add the distance down the ramp to the additional horizontal distance, then multiply it all by 2 because it made the same journey again in reverse.
25 + 20 = 45
45 x 2 = 90 m
Distance=90
Helppppp please!!!! the question is in the attachment
Answers
Answer:
Step-by-step explanation:
The number 1032 is called the numerator or dividend, and the number 43 is called the denominator or divisor.
The quotient of 1032 and 43, the ratio of 1032 and 43, as well as the fraction of 1032 and 43 all mean (almost) the same:
1032 divided by 43, often written as 1032/43.
1032 divided by 43 in decimal = 24
1032 divided by 43 in fraction = 1032/43
1032 divided by 43 in percentage = 2400%
Note that you may use our state-of-the-art calculator above to obtain the quotient of any two integers or decimals, including 1032 and 43, of course.
Repetends, if any, are denoted in ().
The conversion is done automatically once the nominator, e.g. 1032, and the denominator, e.g. 43, have been inserted.
The quotient and remainder of 1032 divided by 43 = 24 R 0
The quotient (integer division) of 1032/43 equals 24; the remainder (“left over”) is 0.
1032 is the dividend, and 43 is the divisor.
Margo is wrapping a box that is 7 inches long, 10 inches wide, and 4 inches high. How much wrapping paper will she need to cover the entire box?
Answers
She will need to cover six sides of the box. To calculate the surface area of the box, you'll need to add the area of each side. The formula for surface area is: 2lw + 2lh + 2wh. Plugging in the dimensions of the box, we get:
2(7 x 10) + 2(7 x 4) + 2(10 x 4) = 140 + 56 + 80 = 276
So, she will need 276 square inches of wrapping paper. But since she doesn't need to wrap the bottom of the box, we subtract one of the sides, which gives us a total of 268 square inches of wrapping paper.
To calculate the surface area of the box, you need to add the area of all six sides. The area of each side can be found by multiplying the length by the width.
- The area of the front and back sides is 7 x 4 = 28 square inches each.
- The area of the top and bottom sides is 10 x 4 = 40 square inches each.
- The area of the two side sides is 7 x 10 = 70 square inches each.
So, the total surface area of the box is 2(28) + 2(40) + 2(70) = 56 + 80 + 140 = 276 square inches.
Therefore, Margo will need at least 276 square inches of wrapping paper to cover the entire box.
Answer:280 in
Step-by-step explanation: First we multiply the length by the width and that would be 7 by 10 and we would get 70. Next we multiply the height by the total of (l x w), so 4 x 70 would be 280. Margo needs a total of 280 inches of wrapping paper to cover the entire box. Hope this helps! :)
Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?
Answers
According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.
If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.
However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.
Therefore, without additional information, we cannot determine the accuracy of Keira's statement.
What is the domain and range of:
Answers
Answer:
b
Step-by-step explanation:
how it works with life