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3 years ago

Evaluate using order of operations. 9(8 – 11) – 3(-5)

Mathematics

1 answer:

yulyashka [42]3 years ago

8 0

Answer:

-12

Step-by-step explanation:

$9(8-11)-3(-5)$

First do multiplication.

$72-99+15$

And then, do the rest of the equation from left to right.

$-27+15$

Answer that question to get:

-12

Hope this helped! :)

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Eduardwww [97]

Answer:

option C 2*x + 3*y = 7.20

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Step-by-step explanation:

PART A

Steve

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kennedy

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3 years ago

The pair of values below is from a direct variation. Find the missing number.

NISA [10]

Answer:

The answer is 2.

2 since 6/4=3/2

Step-by-step explanation:

Since your relation is a direct variation then the points on your line are of the form y=kx where k is the constant of variation (also called constant of proportionality)

If y=kx then y/x=k.

So all the points in this relation since it is a direct variation will be equal to y-coordinate/x-coordinate.

So we are going to solve this proportion:

$\frac{6}{4}=\farc{3}{x}$

Again I put y/x from each point. They should have same ratio because this is a direct variation.

Cross multiply:

$6(x)=4(3)$

$6x=12$

Divide boht sides by 6:

$x=\frac{12}{6}$

$x=2$

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4 years ago

Read 2 more answers