Answer to Question #92447 in Algebra for Lysa

Question

To make concrete mix Monica pours 34 pounds of cement 68 pounds of sand 14 pounds of small pebbles and 19 pounds of large pebbles into a large wheel barrel if she pours the mixture into 9 equal size bags how much will each bag weigh

Answer 1

1) Calculate the mass of the mixture M, adding masses of all of the ingredients (cement, sand, small pebbles, large pebbles):

M = 34 + 68 + 14 + 19 = 135 pounds - total mass of the mixture.

2) We pour the same amount of mixture into each bag, so to find out the mass m of one bag we just divide the total mass M of the mixture by the number of bags:

m = M / 9 = 135/9 = 15 - mass of each bag.

Answer: each bag will weigh 15 pounds.