Question

Eliza bought a day pass to rent a bike in the city. The day pass costs $40 from 9 a.m to 7 p.m. There is a additional fee of $4 per quarter hour if she returns the bike after 7 p.m. Eliza has $50 and plans to return the bike at 8:15 p.m . Does Eliza have ebough money ? Explain using an equation. When should she return the bike?

Answer 1

out of 50 bucks Eliza has already used 40.

she has 10 dollars to pay for 5 quarter of an hour

very quarter of an hour takes 4 dollars. Eliza needs 10 more bucks. Eliza does not have enough money.

In an equation 4$ = 15 Minutes. So Eliza should return the bike at 7:30.