3 years ago

17

Mathematics

1 answer:

defon3 years ago

8 0

A is the the answer 200 adults

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For each of the equations below, solve for y in terms of x. !<br> a. 2x – 3y = 12

ira [324]

Answer:

$\large\boxed{y=\dfrac{2}{3}x-4}$

Step-by-step explanation:

$2x-3y=12\qquad\text{subtract}\ 2x\ \text{from both sides}\\\\2x-2x-3y=12-2x\\\\-3y=12-2x\qquad\text{divide both sides by (-3)}\\\\\dfrac{-3y}{-3}=\dfrac{12}{-3}+\dfrac{-2x}{-3}\\\\y=-4+\dfrac{2}{3}x$

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3 years ago

Simplify each of the expression (x-7)(x+3)

emmainna [20.7K]

Answer:

x² - 10x + 21

Step-by-step explanation:

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2 years ago

What happens when an image is reflected over y = -x

notka56 [123]

Answer:

Well, it's pretty simple. If your reflecting something over the y axis the X will change if it's negative or positive. So if it's -x and you flip it over it becomes a positive x. If you flip it over the x-axis the Y is the one that change to a negative or positive.

So if the shape flips over the y-axis, the X points will turn negative. for example, one of the points is (1,4) it will turn to (-1,4)

Step-by-step explanation:

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3 years ago

Rita and tina make $11 an hour rita worked r hours and tina worked t hours

nlexa [21]

As the price per hour worked is $11, then 11 is the coefficient (or multiplier) of the number of hours Rita and Tina had worked. As for Rita, she will receive an extra $32 flat wage for her total overtime hours, so it will not be multiplied any further. Expressing their total wages mathematically:

Rita's total wages = 11r + 32

Tina's total wages = 11t

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3 years ago

-3a+2b=-3<br> solve for a

vivado [14]

-3a=-3-2b
a=1+2/3b

Solution
a=1+2/3b

7 0

3 years ago

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