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3 years ago

BRAINLIESTTT ASAP! PLEASE HELP ME :)

Mathematics

1 answer:

svp [43]3 years ago

4 0

Answer:

-42

Step-by-step explanation:

directly means y = kx where k is a constant. you have to first find the constant.

$y = kx\\36 = k (-12)\\-3 = k$

now you have your equation $y = -3x$

so you simply plug in x and find y

$y = -3 (14)\\y = -42$

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Multiply (-2xy+z)(5x+yz).

NARA [144]

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6 0

3 years ago

If 2,000 people voted in the election how many were from 50 to 64 years old?

prohojiy [21]

2000*35%=700
700 people voted at ages 50 to 64

8 0

3 years ago

the perimeter of a rectangle is 58cm. the length is 7cm less than three times the width. find the length and width. (translate t

Pie

Answer:

length = 20 cm

width = 9 cm

Step-by-step explanation:

perimeter = 58 cm

58cm = 2*L+2*w equation 1

L = 3w -7 equation 2

where:

L= length

w=width

so we have:

58 = 2(3w -7) +2w

58 = 6w -14 +2w

58 +14 = 8w

72 = 8w

w = 72/8

w = 9 cm = width

we have:

L = 3(9) -7 = 20 cm = length

4 0

3 years ago

3y + 8 = ½ y + 28 Find y

Bess [88]

$\text{Hi there! :]}$

$\large\boxed{y = 8}$

$3y + 8 = 1/2y + 28\\\\\text{Subtract 8 from both sides:}\\\\3y + 8 - 8 = 1/2y + 28 - 8\\\\3y = 1/2y + 20\\\\\text{Subtract 1/2y from both sides:}\\\\3y - 1/2y = 1/2y - 1/2y+ 20\\ \\\text{Convert 3y to 6/2y to make subtracting easier:}\\5/2y = 20\\\\\text{Divide both sides by 5/2 (Multiply by reciprocal, or 2/5):}\\\\\\5/2y * 2/5 = 20 * 2/ 5\\\\y = 8$

8 0

3 years ago

PLEASE I NEED AN ANSWER ASAP

Cloud [144]

Answer:

3/4, 0.76, 4/5, 0.82

Step-by-step explanation:

Hope this helps <3

6 0

2 years ago