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ivolga24 [154]
3 years ago
7

Please help answer -7(2y-3x+9)

Mathematics
2 answers:
blondinia [14]3 years ago
7 0

Answer:

21x - 14y - 63

Step-by-step explanation:

Here you go :D

ANEK [815]3 years ago
4 0

Answer:

21x -14y -63

Step-by-step explanation:

First step we have to distribute -7 inside the parenthesis.

(-7)(2y) - (-7)(3x) +(-7) (9)

RULE 1: The product of a positive integer and a negative integer is negative. RULE 2: The product of two positive integers is positive.

RULE 3: The product of two negative integers is positive.

-14y+ 21x - 63

21x -14y -63

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Irina18 [472]

Answer: No Hope this helps, please consider making me Brainliest.

Step-by-step explanation:

If it is not proportional, it will not cross the origin (I remember this data from the other question you posted). Hope this helps, please consider making me Brainliest.

6 0
2 years ago
Solve for x.
victus00 [196]
The answer is 370 because you need to work it out.

Basically what I did was look at the first number, 12, and the answer to the equation and saw that 12 x 10 would be 120. And 360 + 10 would be 370.

It fits in perfectly.

12(370 - 360) = 120
370 - 360 = 10
12(10) = 120

So x = 370
8 0
4 years ago
A family has two cars. the first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of
Aliun [14]
Let x and y represent the numbers of gallons used by the 40 mpg and 35 mpg cars, respectively.
.. x +y = 40 . . . . . . . . . . .total consumption is 40 gallons
.. 40x +35y = 1525 . . . . total miles driven = 1525

Multiply the first equation by 40 and subtract the second.
.. 40(x +y) -(40x +35y) = 40(40) -(1525)
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The 40 mpg car consumed 25 gallons.
The 35 mpg car consumed 15 gallons.
7 0
3 years ago
For the family picnic, Dana's mom buys a box of 12 forks, a box of 18 spoons, and a box of 24 knives. How many boxes of each wil
SOVA2 [1]

Answer:

72

Step-by-step explanation:

This is assuming the following:

1) fork boxes comes with 12 count.

2) spoon boxes comes in 18 count.

3) knife boxes comes in 24 count.

Find the least common factor:

12: 12, 24, 36, 48, 60, 72

18: 18, 36, 54, 72

24: 24, 48, 72

72 is the least common factor shared by all these numbers.

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3 0
3 years ago
Read 2 more answers
The data given for a football kicked from the field follows a quadratic model, h(x) = - 3x2 + 18x + 7. Where h(t) is the height
OLga [1]

Answer:

C) 34

Step-by-step explanation:

use -b/2a to find the x value of the vertex (3)

then plug 3 into equation

- 3(3)² + 18(3) + 7

the answer is 34

4 0
3 years ago
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