Given that y varies directly with x, use the values specified to write a direct variation equation relating y to x.

x = -19, y = 190

Use your answer to find x when y = -9.

(a)y=-10x

(b)x=0.9

Step-by-step explanation:

If y varies directly with x, we write:

Therefore, a direct variation equation relating y to x is:

(a)y=-10x

(b)When y=-9

Substituting y=-9 into the equation obtained in (a) above

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.