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3 years ago

What is y=-x-14 y=-8x

1 answer:

6 0

Substitute y in the first equation.

-8x = -x - 14
+x +x

-7x = -14
-7x/-7 = -14/-7
x = 2

Now solve for y.

y = -18(2)
y = -36

Answer: (2, -36) or y = -36 and x = 2

You might be interested in

6x = -24 Solve for x.

Salsk061 [2.6K]

Answer:

-4

Step-by-step explanation:

divide -24 by 6

x= -4

6 0

3 years ago

Read 2 more answers

7 ounce- 4.58$<br> 15 ounce- 6.30$<br> Find the unit rate of both numbers

Zielflug [23.3K]

Answer:

7 ounces-4.58 = 1 ounce-0.654....

15 ounces-6.30= 1 ounce- 0.42

Explanation:

Divide 4.58 and 7 and divide 6.30 and 15.

And you get your answers.

I think im not really good with unit rate.

5 0

3 years ago

Josh is preparing for an exam by completing practice tests that have different numbers of questions. For each practice test, he

asambeis [7]

The residuals are the numbers shown next to each black line. Just total them:

15 + 10 + 11-10 +9 +10 +3-17-12 = 19.

The answer is B. 19

8 0

3 years ago

Read 2 more answers

The volume of a sphere can be determined by the formula V = 4/3 πr^3, where r is the radius. What is the volume of a sphere with

allochka39001 [22]

Answer:

$V = \frac{99}{7} x^{9}y^{-6}$

Step-by-step explanation:

Given

$V = \frac{4}{3}\pi r^3$

Required

Find V when

$r = \frac{3}{2}x^3y^{-2$

Substitute $\frac{3}{2}x^3y^{-2$ for r in $V = \frac{4}{3}\pi r^3$

$V = \frac{4}{3}\pi * (\frac{3}{2}x^3y^{-2})^3$

Open bracket

$V = \frac{4}{3}\pi * \frac{3}{2}^3 * x^{3*3}y^{-2*3}$

$V = \frac{4}{3}\pi * \frac{27}{8} * x^{9}y^{-6}$

Simplify the fractions

$V = \pi * \frac{9}{2} * x^{9}y^{-6}$

Let

$\pi = \frac{22}{7}$

So:

$V = \frac{22}{7} * \frac{9}{2} * x^{9}y^{-6}$

$V = \frac{11}{7} * \frac{9}{1} * x^{9}y^{-6}$

$V = \frac{99}{7} * x^{9}y^{-6}$

$V = \frac{99}{7} x^{9}y^{-6}$

6 0

3 years ago

Sam used 6 loaves of elf bread on a 8 day hiking trip. He wants to know how many loaves of elf bread he should pack for a 12 day

KonstantinChe [14]

If he eats 6 loaves in 8 days, that means he ate 0.75 of a loaf each day. (6 divided by 8 = 0.75)
In a 12 day trip,
# divided by 12 = 0.75;
so to undo division, you multiply.
12 x 0.75 = #
# = 9. So 9 loaves for 12 days.

5 0

3 years ago