5 months ago

Q:

The diagram shows a lawn with a fence along one edge. 172-82= 289-64=225 square root of 225=15 1/2 * 12+20 * 15= 1/2 * 32 * 15= 16 * 15=240 240 / 100=2.4 2.4 * 19.75=47.4 One can of weedkiller can cover 100 square metres. Each can costs £19.75 Work out the total cost of the cans of weedkiller needed to cover the lawn. You must show some working.

The diagram shows a lawn with a fence along one edge. 172-82= 289-64=225 square root of 225=15 1/2 * 12+20 * 15= 1/2 * 32 * 15= 16 * 15=240 240 / 100=2.4 2.4 * 19.75=47.4 One can of weedkiller can cover 100 square metres. Each can costs £19.75 Work out the total cost of the cans of weedkiller needed to cover the lawn. You must show some working.

Accepted Solution

A:

The diagram shows a lawn with a fence along one edge. 172-82= 289-64=225 square root of 225=15 1/2 * 12+20 * 15= 1/2 * 32 * 15= 16 * 15=240 240 / 100=2.4 2.4 * 19.75=47.4 One can of weedkiller can cover 100 square metres. Each can costs £19.75 Work out the total cost of the cans of weedkiller needed to cover the lawn. You must show some working.