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 wheelbarrow. If she pours the mixture into 9 equal-size bags, how much will each bag weigh? First, find the total weight of the mixture. Then, divide the total number of bags. Break the total into two simpler numbers to make the division easier, if necessary. Finally, find the quotient and solve the problem. So, each bag will weigh _____ pounds.2. What if Monica pours the mixture into 5 equal-size bags? How much will each bag weigh?

Answer 1

She wants to mix a concrete . She pours

34 pounds of cement

68 pounds of sand

14 pounds of small pebbles

19 pounds of large pebbles

The total weight of the mixture = 34 + 68 + 14 + 19 = 135

If she pours the mixtures into 9 equal size bags the total weight of the mixture

will be

`135*9=1215`

To find the weight of each bag of the mixture

`(1215)/(9)=135\text{ pounds}`

If she pours the mixture into 5 equal size bags, each bag will weigh as follows

`\begin{gathered} total\text{ weight of five bags = 135 }*5=675 \\ \text{each bag weigh=}(675)/(5)=135\text{ pounds } \end{gathered}`