3 years ago

Please help, I'll mark Brainiest. It's 8th grade math

Mathematics

2 answers:

yawa3891 [41]3 years ago

7 0

Answer:

(-5, 2)

Step-by-step explanation:

<u>plug x into the equation x - 5y = -15</u>

-5 - 5y = -15

add 5 to both sides: -5y = -10

divide by -5: y = 2

svetlana [45]3 years ago

7 0

Correct Answer:

(5, 4)

You might be interested in

A pharmacist whose salary became $640 a week had

irinina [24]

640 x 0.30= 192

640-192= 448

448 is the answer

4 0

3 years ago

Read 2 more answers

2.) If z varies inversely as r, and z= 24 when r = 6, find r when z= 12

Schach [20]

Step-by-step explanation:

........ .......... ....

7 0

2 years ago

If <img src="https://tex.z-dn.net/?f=%5Cfrac%7Ba%7D%7B4%7D%20%3D%20%5Cfrac%7Bb%7D%7B7%7D" id="TexFormula1" title="\frac{a}{4} =

tamaranim1 [39]

Answer:

Step-by-step explanation:

$\frac{a}{4}=\frac{b}{7}\\a=\frac{4b}{7} \\\frac{a-b}{b} =\frac{\frac{4b}{7}-b }{b} \\=\frac{4b-7b}{7b}\\ =\frac{-3b}{7b}\\ =\frac{-3}{7}$

6 0

3 years ago

"if the standard deviation of a group of 20 scores is 15, what is the variance?"

DerKrebs [107]

We have been given that the standard deviation of a group of 20 scores is 15 and we are asked to find variance.

Since we know variance is square of standard deviation. In order to find out the variance of the given data we have to take the square of 15.

$\text{ Variance}=\sigma^{2}\\
=15^{2}=225$

Therefore, our variance is 225.

7 0

3 years ago

Y equals negative X squared +10 X -26

Pani-rosa [81]

Answer:

Step-by-step explanation:

y=(x+5)2−1

Use the vertex form,

y=a(x−h)2+k, to determine the values of a, h, and .a=1h=−5k=−1Find the vertex(h,k(−5,−1)

3 0

3 years ago