Question

If a Cell Phone Company Z charges a flat fee of $15 plus $0.50 per minute,the equation would be y=0.50x + 15, where y represents total amount of money and x represents minutes,how much would it cost for 20 minutes?

Answer 1

It costs $20 dollars for 20 minutes.

Explanation:

f a Cell Phone Company Z charges a flat fee of $15 plus $0.50 per minute,

the equation would be y = 0.50x + 15 ..(1)

where y represents total amount of money and x represents minutes

The cell phone charge for 20 minutes = ?

substitute x = 20 in eq(1)

y = 0.50(20) + 15

y = 10 + 15

y = $25

It costs $20 dollars for 20 minutes.