A motorboat heads upstream a certain distance and returns to its starting point. The trip up and back takes 9 hours. The current is running at 5 miles per hour (mph). If the motorboat maintained a constant
speed of 10 mph relative to the water, what is the total distance of the trip?

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.