3 years ago

What is 8x-4y=-12;-3,-1,1 solve for y

1 answer:

3 0

8x - 4y = -12
4y = 8x + 12
y = 8/4 x + 12/4
y = 2x + 3

When x = -3,
y = 2(-3) + 3 = -6 + 3 = -3
When x = -1,
y = 2(-1) + 3 = -2 + 3 = 1
When x = 1,
y = 2(1) + 3 = 2 + 3 = 5

You might be interested in

what is the answer to this question and how??

Lesechka [4]

Answer:

maybe there's a typo, that dot usually represents the multiplication, and I got 5.52

4 0

3 years ago

Activity 1 Calculate the following: 1. 68% of 418,

il63 [147K]

Answer:

284.24

Step-by-step explanation:

by multiplying 0.68 to 418 we get 68% of 418

7 0

3 years ago

Read 2 more answers

20 and 1/2 x 10 1/4 x 12

Andru [333]

Answer:

2521.5

Step-by-step explanation:

20.5 · 10.25 · 12

2521.5

5 0

3 years ago

Paolo is using his grandmother’s cookie recipe. He always doubles the amount of chocolate chips and oats. The recipe calls for 2

nalin [4]

Answer:

y = 94.5 cups

Step-by-step explanation:

Let's say:

y = oats
x = chocolate chips = 212

=> Full Recipe = 212 + y

=> 2(Full Recipe) = 2(212 + y) = 613 cups

=> 2(Full Recipe) = 424 + 2y = 613 cups

=> 2y = 613 - 424

=> 2y = 189

=> y = 94.5

Therefore, the required oats to do double the recipe is 94.5 cups.

Hoped this helped.

$GeniusUser$

8 0

2 years ago

Select the correct answer. Which function is the inverse of function f(x) = -2

Artemon [7]

Answer:

Step-by-step explanation:

let f(x) = y and rearrange making x the subject

y = $\frac{x+2}{7}$ ( multiply both sides by 7 to clear the fraction )

7y = x + 2 ( subtract 2 from both sides )

7y - 2 = x

Change y back into terms of x with x the inverse function, that is

p(x) = 7x - 2

8 0

3 years ago

Read 2 more answers