Answer:
i got you bro
Step-by-step explanation:
It is very easy to estimate 10% of any number - just divide by 10 by moving the decimal point one place to the left.
Once you know 10% of an amount, it is possible to find 5% by dividing the value that is 10% by 2. Adding these answers gives a quick estimate of 15%
For example: "Find 15% of 300"
10% of 300 = 30 and 30÷2=15
15% of 300 = 30+15 =45
In the same way for this question ...
Treat 89.50 as $90 Find 10%, then 5%.
#10% +5% = 9+13.50#
15% of the bill is about $13.50
