Question

Need some help answering this one.

Answer 1

What I would do is first find out how many pounds are in a single bag of quartz. and do the same for marble. to achieve this divide the number for quartz by three, then doing the same for marble. then take the number you found per bag and multiply it by the number of bags.

Answer 2

    72

11         77

   126

15        105

The ratio of the number of bags of quartz is 1:9 and the ratio of number of bags to marble is 1:7