Question

The expression 100 + 20m, gives the volume of water in Eduardo's pool (in liters) after Eduardo spends m minutes filling his pool. What is the volume of water in Eduardo's pool after he fills it for 5 1\4 ​ 5, start fraction, 1, divided by, 4, end fraction minutes? liters

Answer 1

205 litres

Explanation:

The expression that gives the volume of water in Eduardo's pool (in liters) is:

`100 + 20m`

where m is time, in minutes

After
`5(1)/(4)` minutes (
`(21)/(4)` minutes), the volume is will be:

`100 + (20 * (21)/(4) )\\\\\\100 + (5 * 21)\\\\\\100 + 105`

= 205 litres

The volume of water in the poll will be 205 litres.