Question

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.

Answer 1

according to the question, we must setup a proportion like this :

\(\frac{a}{b} = \frac{c}{d}\)

Answer 2

since he save 6 rupees on every 100 rupees he spends,
first ratio will be 6/100

\(\frac{6}{100} = \frac{c}{d}\)

Answer 3

call : x, the amount he will have to spend

Answer 4

to save 30 dollars, the proportion becomes :

\(\frac{6}{100} = \frac{30}{x}\)

Answer 5

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

Answer 6

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

Answer 7

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

Answer 8

yw... :))

Answer 9

Yeah, sorry it ws my mistake :)

Answer 10

i m sorry about that

Answer 11

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

Answer 12

your awesome @ganeshie8 !!!!!!!!!! :)

Answer 13

minor correction @ganeshie8 . x is 500 and it was in the denominator

Answer 14

oops! you're right.... good catch @rsadhvika thank you :)