## Faman39 Group Title Kenny goes shopping for school clothes during a tax−free weekend, and he saves 6% sales tax. Use a percent proportion to determine how much he would have to spend to save 30% . Which of the following is true? The solution is $18 , and is a denominator in the proportion. The solution is$18, and is a numerator in the proportion. The solution is $500, and is a denominator in the proportion. The solution is$500, and is a numerator in the proportion. one year ago one year ago

1. ganeshie8 Group Title

according to the question, we must setup a proportion like this : $$\frac{a}{b} = \frac{c}{d}$$

2. ganeshie8 Group Title

since he save 6 rupees on every 100 rupees he spends, first ratio will be 6/100 $$\frac{6}{100} = \frac{c}{d}$$

3. ganeshie8 Group Title

call : x, the amount he will have to spend

4. ganeshie8 Group Title

to save 30 dollars, the proportion becomes : $$\frac{6}{100} = \frac{30}{x}$$

5. ganeshie8 Group Title

solving gives, x = 500, and it is in the numerator.....

6. ganeshie8 Group Title

and i see theres a mistake in the question : its not 30%, it should be 30 \$.

7. Faman39 Group Title

Thank u so much @ganeshie8 !!!!!!!!!!!!!!!!!!!!!!!!!!! :)

8. ganeshie8 Group Title

yw... :))

9. Faman39 Group Title

Yeah, sorry it ws my mistake :)

10. Faman39 Group Title

11. ganeshie8 Group Title

lol okay... its easy to make out so no probs... :D

12. Faman39 Group Title