Question

For a certain kind of plaster work, 1.9 cu yd of sand are needed for every 100 sq yd of surface. How much sand will beneeded for 290 sq yd of surface?...cu yd of san will be needed for 290 sq yd of surface.(Type a whole number or a decimal.)

Answer 1

INFORMATION:

We know that:

- 1.9 cu yd of sand are needed for every 100 sq yd of surface

And we must find how much sand will be needed for 290 sq yd of surface

STEP BY STEP EXPLANATION:

To find it, we can write that 1.9 cu yd of sand are needed for every 100 sq yd of surface in the form of a fraction

`(1.9yd^3)/(100yd^2)`

Then, to find how much sand will be needed for 290 sq yd of surface, we must multiply it by the fraction

`290yd^2*(1.9yd^3)/(100yd^2)`

Finally, simplifying

`5.51yd^3`

So, 5.51 cu yd of sand will be needed for 290 sq yd of surface.

ANSWER:

5.51 cu yd of sand will be needed for 290 sq yd of surface.