Abdul purchased a prepaid phone card for 45.00 . calls cost 6 cents a minute using this card. the credit, (in dollars), left on the card after it is used for x minutes of calls is given by the following. c= 45.00 - 0.06x how much credit is left on the card after abdul uses it for 50 minutes of calls?

C= 45.00 - 0.06x

C= 45.00 - 0.06(50)

C= 45.00 - 3 = $42 left

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.