Fred and Wilma start from the same point and travel on a straight road. Fred travels at 30 mph, while Wilma travels[..]

A student needs to strengthen a mixture that is 12% alcohol to one that is 35% alcohol. How much pure alcohol should[..]

The sum of the ages of John and Mary is 32. Four years ago, John was twice as old as Mary. Find the present age of each.

Tim is 5 years older than JoAnn.six years from from now their ages will be 79.how old are they now

The next model of a sports car will cost 11.4% less than the current model. The current model costs $33,000[..]

Keisha's chocolate bar is 39% cocoa. If the weight of the chocolate bar is 74 grams, how many grams of[..]

A metalworker has a metal alloy that is 1515​% copper and another alloy that is 6060​% copper. How many[..]

Two rectangles are similar. One has a length of 12 cm and a width of 9 cm, and the other has a width of 8 cm. Find[..]

Samuel decided to paint the house. He bought 2 cans of paint and one roller for $30. More help arrived, so he went[..]

A half-dollar weighs 6 grams and a quarter weighs 2 grams. A box with 60 half-dollars and some quarters weighs 370[..]