The dinner check for a birthday party was $89.50. How do you estimate a 15% tip?

Answer 1

#15%# of the bill is about #$13.50#

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%#

As an illustration, "Find 15% of 300"

30% div 2 = 15 and 10% of 300 = 30

30 + 15 = 45 is 15% of 300.

Likewise, regarding this inquiry...

Treat #89.50# as #$90# Find 10%, then 5%.

#10% +5% = $9+%4.50 = $13.50#

#15%# of the bill is about #$13.50#

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Eli Assouline

To estimate a 15% tip on an $89.50 dinner check, you would multiply the total amount by 0.15. So,$ 89.50 * 0.15 = $13.425. Therefore, a 15% tip would be approximately$ 13.43.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.