Question

Someone please help me with this question, I don't know what to to! Ken drives a taxi cab and receives $100 a day plus $0.50 for every mile he drives. He is saving up for a new television that costs about $2500. If Ken drives an average of 400 miles per day, how many days will he have to drive to save enough money to buy the television?

Answer 1

He needs to drive for 9 days to to save enough money to buy the television.

Explanation:

The per day salary of Ken = $ 100

Also, he receives $0.50 for per miles he drives.

Now, in a day if Ken drives 400 miles.

So, the amount he receives as his per mile rate = 400 x (Per mile cost)

= 400 x ( $0.50) = $200

So, Ken's per day income

= FIXED AMOUNT + Amount he receives driving 400 miles a day

= $100 + $200 = $300

⇒ In 1 day , Ken earns $300.

Now, he wants to purchase a TV costing $2500

Let us assume he saves enough money in m days.

⇒ SAVINGS in m DAYS = COST OF THE TV

⇒ m x ( $300) = $2500

⇒ m = $2500/ $300 = 8.33

or, m = 8.33

Now, the greater whole number next to 8.33 = 9

Hence he needs to drive for 9 days to to save enough money to buy the television.