01-04-2015
Mathematics

Answered

If 2 over 7 of a ton of concrete covers 7 over 8 of a wall, how many tons of concrete are required to cover the entire wall?

Answer :

01-04-2015

Set up a proportion:

2/7/7/8 = x/1

Multiply 1 to both sides:

(2/7 * 1)/(7/8) = x

(2/7)/(7/8) = x

Flip the 2nd fraction and multiply:

2/7 * 8/7

Multiply the numerators and denominators together:

16/49

So 16/49 tons of concrete are required to cover the entire wall.

Answer Link

Other Questions

9/10 divided by (1/10 plus 2/5)

There are 50 questions to answer in a trivia contest. Each player starts with 100 points. He or she earns 10 points for each correct answer but loses 4 points w

Taylor wants to make 2 1/2 times the quantity given in a recipe. The recipe calls for 1 3/4 cups of flour. How much flour will Taylor need?

Taylor wants to make 2 1/2 times the quantity given in a recipe. The recipe calls for 1 3/4 cups of flour. How much flour will Taylor need?

Verify the identity sec(beta) - 1 / cos(beta) = sec(beta)

solve the missing measure of a square, when P=76inFormula: P=4s

9/10 divided by (1/10 plus 2/5)

What does y-intercept represent?

If light travels 671,000,000 miles per hour, how many miles will it travel in one minute?

solve the missing measure of a square, when P=76inFormula: P=4s