percent problems... NEED HELP PLEASE! :)?

Question

1) change ea. % to its decimal equivalent : 45% 12.5% 115%
2) if the sales tax is 8%, what is the tax on a purchase of $72?
3) if the sales tax is 5%, calculate the tax on a purchase of $695
4) A shirt that originally cost $32 is on sale for 15% off. How much do you save?
5) How much would a $175 bicycle cost, if during a sale, its price were reduced by 30%
6) A pair of shoes that originally cost $69 is on sale for 25% off. How much will the shoes cost?
7) If sales tax on the shoes is 8%, what is the total amount you will pay?

Answer 1

1) move each decimal point two times to the left (ex: 45%=0.45)
2) multiple sales tax and dollar amount and thats your answer
3) same as above
4) same as above (ex: something cost $50 sale 20%off... $50 times 0.20 = you save $10)
5) same as above
6)same as above then subtract amount from original (ex: something cost $50 sale 20%off... $50 times 0.20 = you save $10 then you take orginal amount -save =answer $50-$10=$40)
7) take rule number 6 then rule numer 2 add them together and thats your answer...

now take those rules and do your own homework! good luck!

Answer 2

#1 To change percont to decimal, divide by 100%, or move the decimal two places to the left.

#2 What is 8% of $72?
?? = 8% x $72

#3 (same)

#4 15% of (x) $32 gives you the amount saved

#5 If the discount is 30%, then you are paying 70%; so multiply by the complement of 30% (which is 100% minus 30% = 70%), to get the amount you pay (your cost).

#6 (see #5)


#7 answer to #6 times (1 + 8%) = total cost
**This means the number plus itself times 8% using the distributive property.**

Answer 3

1. .45 .125 .115

2. 72 x .08 then add that to $72.

3. .05 x 695

4. 32 x .15

5. 175 x .3 then subtract the amount from 175

6. 69 x .25

7. 69 x .08 then add to amount already shown

Answer 4

a percent is just a part of 100. for example, 45% =45/100=.45 I think you can do the rest of part one.

part two, change the percent to a decimal, then multiply by72

do part three the same way

do part four the same way.

do part five the same way, but then subtract your answer from 175

do part six the same way as part five

part seven...change the percent to a decimal, multiply be the answer in part six, then add the answer to the answer in part six.

I know it would be easier if I'd just given you the answers, but you wouldn't learn that way and I don't like doing other people's homework.

Good luck!

Answer 5

8%of 72$57.60

Answer 6

1 - .45, .125, 1.15
2 - $5.76
3 - $34.75
4 - $27.20
5 - $122.50
6 - $51.75
7 - $55.89

Answer 7

1.
45%= .45
12.5%= .125
115%= 1.15
2. 5.76

Answer 8

1.-
2. 5.76
3. 34.75
4. $4.8
5. $122.5
6. $51.75
7. $55.89

i think it is true.