Reference no: EM13281337

Rich wanted to buy some additional rocks and gravel to spread on existing rocks and gravel in his backyard. He carefully measured the area involved, knew the depth he wanted of each kind of material, and he fairly accurately estimated that he needed about 1.85 cubic yard of 1-inched size red rock and 7.41 cubic yard of 1/4-inched gold gravel. A company sells both material by tons. 1 ton of one-inched red rock covers 120 ft sq to a depth of 3 inches and 1 ton of 1/4-inch gold gravel covers 80 ft sq to a depth of 3 inches.

Questions:

1) To the nearest 1/4 ton, how many tons of each material did Rich need to buy?

2) round up the number 1 amount (answer) to the next largest whole ton if they are more than 0.1 to more than a whole ton.

3) using the rounded value and to the nearest whole dollar how much did each material cost?

4) Local sale tax on these material was 9.5%, what was Rich total cost to the nearest dollar?