Question

Cade gets his phone bill and finds out that he is charged a 20 dollar flat rate and then must also pay .05 cents per minute. Write a linear equation for this situation: If Cade’s phone bill was 35 dollars this month, how many minutes was he on the phone talking to his girlfriend? Cade was on the phone for how many minutes?

Answer 1

1100 minutes

Explanation:

Equation: 35=.05x-20

Why? x is the amount of minutes on his phone. Each minute is 0.05 hence 0.05x. Subtract 20 because that is the flat rate

55=.05x

x=1100

Therefore he was on his phone for 1100 minutes