Question

A car is traveling at a steady speed. It travels 1 3/4 miles in 2 1/3 minutes. How far will it travel in 39 minutes ​? In 1 hour ​?

Answer 1

Answer: 45

Step-by-step explanation:

1 and 3/4 miles ???? miles

-------------------- = ---------------------

2 and 1/3 minutes 39 minutes

Cross multiplies:

(1 and 3/4) x 39 = (2 and 1/3) x ?

7/4 x 39/1 = 7/3 x ?

273/4 = 7/3 x ?

? = 273/4 * 3/7 = 39*3/4 <---- 7 x 39 = 273

= 117/4

= 29 and 1/4

---------------------------------------------------------------

1 and 3/4 miles ?

------------------ = ------------------

2 and 1/3 min 60 min

(1 and 3/4) * 60 = (2 and 1/3) * ?

7/4*60/1 = 7/3 * ?

105 = 7/3 * ?

? = 105*3/7

= 315/7

= 45