Question

A lunch check is $27.95. How do you estimate a 15% tip?

Answer 1

4 or 5 dollars depending on the service

Explanation:

`10%of 30 =3` so 15%=4.5
When estimating round off numbers to 1 significant figures so calculations are easy!!

Answer 2

As an estimate, either `$4.20 " or " $4.50` would be close to 15% as a tip.

Explanation:

`10%` is pretty simple to calculate because it just involves moving the comm one place to the left.

`5%` is half of `10%`

`$27.95` is close to `$28`, and for an estimate, close to `$30`

`10%` of `$28 = $2.80" and "10%` of `$30 = 3`
`5% " of " $28 = $1.40" and "5% " of "$30 = $1.50`

`15% " of " $28 = $4.20" and " 15% " of " $30 = $4.50`

As an estimate, either `$4.20 " or " $4.50` would be close to 15% as a tip.