Anne and Nancy use a metal alloy that is 20% copper to make jewelry. How many ounces of a 14% and 24% alloy must be mixed to form 100 ounces desired alloy?

Ten elevenths as decimal

The wool of a vicuna is finer than any other wool. The hair of this animal can be as thin as 0.000006 meters. If the average thickness of human hair is approximately 8.

A group of 36 people attended a ball game. there were twice as many children as adults in the group. set up a system of equations that represents the numbres of adults and children who attended the game and solve the system to find the nymber of

Today, a bicycle rider rode her bike 5 1/2 miles. Yesterday, she rode 6 1/4 miles. The difference in length between the two rides is what fraction of the longer ride?

The reciprocal of 5 plus the reciprocal of 7 is the reciprocal of what number?

A school has a boy to girl ratio of 6:7. If there are 288 here are 288 boys, how many girls are there?

The function f (x) = 4500 (0.98) ^x represents the value in dollars of a vehicle x years after it has been purchased new. What is the average rate of change in value per year between years 5 and 10? A. - $3676.83/year B. - $0.98/year C. - $78.

A school collected 412 cans of food to donate. the cans will be packed in boxes that can hold 20 cans each. how many boxes will be needed to pack all the cans of food

Which expression is equivalent to 8c + 6 - 3c - 2? A). 5c+4 B).5c+8 C).11c+4 D).11c+8 Can you work out this problem

Paul has a piece of wood that is 4 yards long. He knows there are 12 inches in 1 foot, and 3 feet in 1 yard.