1) Shane works at a computer store. If he earns $20.93 from a 7% commission on the sale of a printer, what is the price of the printer?

2) Kayla earns a weekly salary of $290 plus a 5.5% commission on sales at a gift shop. How

much would she make in a week if she sold $5700 worth of merchandise?

3) Heather works in a clothes shop, where she earns a commission of 5% and no weekly salary. What will Heather's weekly sales have to be for her to earn $375 in one week?

4) The sales tax rate in Brad's town is 4.25%. If he buys 3 lamps for $22.49 each and a sofa for $829.99, how much sales tax does he owe?

Question

Mathematics

Francisco Osborne

10 May, 21:03

1) Shane works at a computer store. If he earns $20.93 from a 7% commission on the sale of a printer, what is the price of the printer?

2) Kayla earns a weekly salary of $290 plus a 5.5% commission on sales at a gift shop. How

much would she make in a week if she sold $5700 worth of merchandise?

3) Heather works in a clothes shop, where she earns a commission of 5% and no weekly salary. What will Heather's weekly sales have to be for her to earn $375 in one week?

4) The sales tax rate in Brad's town is 4.25%. If he buys 3 lamps for $22.49 each and a sofa for $829.99, how much sales tax does he owe?

+2

Answers (2)

Know the Answer?

Deon Branch · Answer 1

1. he earns 20.93 which is 7% of the price of the printer so 7%=7/100 so

20.93=7/100 so here is a little trick

so we want to know what 100% is so

we know that 1/2 is equal to 4/8 so since they are equal, we can flip one of them and if we multiply them with each other, we will get 1/1 or 1 so 1/2 times 8/4=8/8 or 1 so

20.93/x (x=100%)

20.93/x=7/100 so

20.93/x times 100/7=1

2093/7x=1

multiply both sides by 7x

2093=7x

divide both sides by 7

299=x

the printer cost $299

2. so 290+5.5% of sales

sales=5700

5.5%=0.055

'of' can be thought of as multiply so

0.055 times 5700=313.5

290+313.5=603.5=what she made that week

3. she earns 5% and that's all she earns

5%=375

a hack is that 5 times 200=100 so

5% times 20=100% so

375 times 20=100%=$7500=amount that needs to be sell to get 375

4. so he buys 3 laps at 22.49 each and 829.99 with 4.25% or

3 times 22.49=67.47+829.99 times 4.25% or

897.46 times 4.25% or 897.46 times. 0425 and get $38.1421 sales tax owed

Mohammad · Answer 2

1. 20.93 is 7% of something. Divide 20.93 by 7 and you get 2.99, which is 1% of something Multiply 2.99 by 100 to get the original value, $299

2. 5.5% of 5700 is 313.5. Add that to 290 to get $603.5

3. The $375 that she earns is 5% of what she has sold. Multiply 375 by 20 to get $7500, how much she needs to sell

4. The total cost of the 3 lamps is 22.49x3, 67.47. Add that to 829.99 to get 897.46. Multiply that by 0.0425 (4.25%) to get 38.14205, or just 38.14 in sales tax