a boy is older than his sister by 3 years five years ago, the ratio of their ages was 4 : 3 find his present.

Danny poured 78 liters of water into x, y, and z. The ratio of the volume of water in container x to the volume of water in container y is 5:2. The ratio of the volume of water in container y to the volume of water in container z is 8:11.

Maids, Inc. offers a maid service whose fees are defined by the function C (t) below, where t represents the number of hours purchased. How much more will a customer pay to use the service for 5 hours than for 3 hours? C (t) = 45t + 95 Select one: A.

Convert 0.00049 to scientific notation. 4.9 ⋅ 103 4.9 ⋅ 104 4.9 ⋅ 10-3 4.9 ⋅ 10-4

The ratio of wins to losses for a team is 60 wins and 90 losses what is the ratio?

One day, four out of every five books borrowed from a library were novels. Which fraction and equivalent percent compares the number of novels to the total number of books borrowed?

If the radius of a flying disc is 7.6 centimeters, what is the approximate area of the disc? 23.864 square centimeters

Suppose you select 2 letters at random from the word compute without replacement. Find each probability. P (2 vowels)

5a - 2 (a + 2) simplify the expresion

A gourmet pizza café sells three pizzas three sides of pizza if you buy three sizes it cost 46.24 A medium pizza cost $15.75 and a large pizza cost $17.50 how much does the small pizza cost

William is putting up signs on the edge of the road every 1/16 of a mile. He just put a sign down and he has 7/8 of a mile of road left in which to place his signs. He wants to determine how many more signs he should put on the edge of the road.