You can set up a proportion: 1/2:1/15=x:1

Cross multiply:
1/2=1/15x

Divide both sides by 1/15:
7.5=x

Robert can run 7.5 miles in an hour

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles