Answer:

x can be 4.99 to make y>0

Step-by-step explanation:

y= −1.5x + 7.5

For what value(s) of x is: y>0

lets solve for x first:

-1.5x + 7.5 = 0

-1.5x * 10 + 7.5 * 10 = 0 * 10

-15x + 75 = 0

-15x + 75 – 75 = 0 – 75

-15x = -75

x = -75/-15

x = 5

to make y>0, we substitute x<5 into the formula

y > −1.5(4.99) + 7.5

y > 0.15

therefore, x can be 4.99 to make y>0