30 marbles are to be divided unto three bags so that the second bag has three times as many marbles as the first bag[..]

if three times the smaller of two consecutive integers is added to 4 times the larger, the result is 88. find the[..]

A cereal box is a rectangular prism that is 40cm tall, 30cm wide, and 5cm thick. A new box will have the same[..]

Gabe needs 30 liters of a 60% acid solution. He currently has a 40% acid solution and a 70% acid solution. How many[..]

Nancy drives 20 mph faster than her father, Greg. In the same time that Nancy travels 180 mi, her father travels[..]

A four-digit number is formed from the digits 1,2,3,4,5, and 6. Assume that the digits cannot be repeated, what is[..]

Solve by elimination method 6x+9y=-27 -6x+y=37 What is the solution set?

Solve by elimination method 6x-y=27 x+y=15 What is the solution set?

in a high school class 60% of the students are boys. if there are 21 boys in the class what is the total number of[..]

A hospital laboratory needs a 10% dextrose solution. However, only 5% and 20% dextrose concentrations are in stock.[..]