Question

for his long distance phone service, boris pays a $6 monthly fee plus 8 cents per minute. last month, boris's long distance bill was $18.88. for how many minutes was boris billed?

Answer 1

EXPLANATION

Let's see the facts:

Long-distance phone service --->

-($6 monthly fee + $0.08*minute)

Last month long-distance bill:

-$18.88 (total paid).

With these given facts, we need to solve the problem by representing this in an equation:

Let's call the number of minutes Boris was talking as x

Then, the equation will be as shown as follors:

18.88 = 6 + 0.08x (Subtracting -6 to both sides)

18.88 - 6 = 0.08x (Simplifying)

12.88 = 0.08x (Dividing both sides by 0.08 and switching)

x = 12.88/0.08 (Simplifying)

x = 161

The answer is: Boris was billed by 161 minutes.