There are two machines that produce aluminium cans. the newer machine can produce 7200 cans in 200 minutes. it takes the older machine 300 minutes to produce that many cans. if the two machines work together, how long will it take them to produce 7200 cans?

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25