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Popular Word Problems >

Kira went for a drive in her new car. She drove for 142.5 miles at a speed of 100 mph. For how many hours did she drive?

Solution

K i r a w e n t f or a d r i v e in h er n e w c a r . S h e d ro v e f or 142.5 mi l es a t a s p ee d o f 100 m p h . F or h o w man y h o u rs d i d s h e d r i v e ?

Solution

time : 1.425

Solution steps

Translate the problem into an equation:

142.5 = 100 x

Solve for

x, 142.5 = 100 x : x = 1.425

time : 1.425

Popular Examples

Alvin is 9 years older than Elga. The sum of their ages is 75. What is Elga's age?Lauren's age is half of Joe's age. Emma is four years older than Joe. The sum of Lauren, Emma, and Joe's age is 234. How old is Emma?4 times a number, plus 9 4 times a number.the sum of two consecutive odd integers is 144