SOLUTION: You can buy used I line skates from your friend for 40$, or ou can rent some. Either way, you must rent safety equipment. How many hours must you skate for the cost of renting and

Question 517038: You can buy used I line skates from your friend for 40$, or ou can rent some. Either way, you must rent safety equipment. How many hours must you skate for the cost of renting and buying skates to be the same?
Skates and safety equipment: 3.50$/hour
safety equipment 1.50$/hour
Found 2 solutions by josmiceli, JBarnum:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The key is:
Either way, you must rent safety equipment.
In words:
( $40 + safety rental) = ( skates and safety rental )
Let = hours of rental

After 20 hours of rental, the cost is the same
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
Logical thinking:
well its $2 more per hour to rent skates and safety equipment so 40/2=20
so in 20 hrs you will have spent the same amount of money
.
.
Mathimatical way:
= how many hours
subtract from both sides
divide by 2

RELATED QUESTIONS
This is a word step equation. I'll type it down. Renting in-line skates and safety... (answered by Theo,MathTherapy)
I would really be happy if you could give me this as soon as possible. Its due tommorrow (answered by MathTherapy)
You plan to go ice skating often this winter. The skating rink charges $2 for admission.... (answered by ikleyn)
At Stan's Skating rink, you can rent roller skates or roller blades. For every 4 people... (answered by Boreal)
"You live near a mountain bike trail. You can rent a mountain bike and a safety helmet... (answered by richwmiller)
It costs marc $5 per day to rent a kayak plus $10 for equipment at Outpost Outfitters. He (answered by stanbon)
According to the Ameriprise Financial Money Across Generations study, 9 out of 10 parents (answered by ikleyn)
you can rent a car a day from company A for $49 plus $o.10 a mile or from company B... (answered by richwmiller)
metro concerts can rent a truck for either $55 with unlimited mileage or $29 plus 40... (answered by mananth)