How do you find the tax on a purchase and calculate the final bill? Give an example, then write and solve a number sentence to i

Question

Anarel [89]

3 years ago

5

How do you find the tax on a purchase and calculate the final bill? Give an example, then write and solve a number sentence to i

llustrate your strategy.

Mathematics

1 answer:

Lerok [7] · Answer 1 · 2022-05-05T02:35:19+03:00

If you are buying something that cost $15 and sale tax is 6%, you can calculate final bill trough proportions:
$15:100%=$x:106%
100x=106*15, x=(106*15)/100, x=$15.9 is final bill.

You can also use easier way: $15+0.06*$15=$15.9
Explanation for 2nd way: Cost is $15, on that you need to add 6% of $15: (6%/100%)*$15 and that is 0.06*15.