How many gallons of a 60% antifreeze solution must me mixed with 60 gallons of 25% antifreeze to get a mixture that[..]

A plane travels at a speed of 210 mph in still air. Flying with a tailwind, the plane is clocked over a distance[..]

Trains a and b are traveling in the same direction on parallel tracks. Train a is traveling at 100 miles per hour[..]

A cone has volume V=13πr2h,where ris the radius of the cone's base and his the height of the cone. Find the height[..]

A plumber earns $15 per hour more than her apprentice. For a 40-hour week, their combined earnings are $2200. What[..]

a closed rectangular box is made from wood material.the length of the box will be twice its width and the box must[..]

Suppose the time a polar bear at the zoo spends outside varies inversely with the temperature. If the bear spends 3[..]

brianna has fourteen fewer pennies than nickels. Brianna has a total of $1.72. How many of each coin does she have?

Write an absolute value inequality that represents the set of numbers: all real numbers at least 3 units from -2

A box of cereal should have a mass of 397 grams. The quality control inspector measures the mass of every fiftieth[..]