Acell phone company has a basic monthly plan of 40$ plus $0.45 for any minutes uses over 700. before receiving this statement, john saw he was charged a total of $48.10. write and solve an equation to determine how many minutes he must have used during the month. write an equation without decimals.

u dumb boi

step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15