At a refinery, 100,000 tons of sand are required to produce each 60,000 barrels of a tarry material. How many tons of sand are required to produce 3,000 barrels of this tarry material?
Two movie tickets and three concert tickets cost $21. Three movie tickets and 2 concert tickets cost $19. Each ticket costs a whole number of dollars.How much does 1 movie ticket cost?How much does 1 concert ticket cost?
The perimeter of a rectangle is 20 feet and the foot-measure of each side is a whole number. How many rectangles with different shapes satisfy these conditions?
Tom is 4 times as old as Todd. In 7 years Tom's age will be 11years more than 2times as old as Todd. How old is Todd?
What is the decimal equivalent for 5/8 7/10 11/20 and 21/25? And please explain how you got the answer for 21/25 without using a calculator. Thanks :)
