09/11/14

#### What quantity of 75 percent acid solution must be mixed with a 30 percent acid solution to produce 540 mL of a 50 per cent solution?

I am having trouble coming up with the write answer for this question! Please help!

09/11/14

#### If a pound of beef costs $11.99 a pound but I only but 2.5 pounds of beef how much did it cost

If a pound of beef cost $11.99 per pound but I only buy 2.5 pounds,how much did it cost?

09/11/14

#### I'm an 8th grader and got into algebra. My question is how to simplify problems like 5•99

Other examples:
2•(473•5)
12•199
4•27•5•3
they do some different things like
5*99
5*(100+(-1))
500+(-5)
=495

09/10/14

#### Is this a trick question?

A motorcyclist was sent by the post office to to meet a plane at the airport. The plane landed ahead of schedule and it's mail was taken toward the post office by horse. After half an hour the...
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09/09/14

#### a moving truck travels 30 miles faster than train, in time it takes to travel 135 miles truck travels 225mi find speed of truck

find speed of truck

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