1) T-shirt,$19.95   tax rate,5%2)refrigerator,$499   tax rate,6%3)motorcycle,$3,500   tax rate,5.5%there are 3 questions.please help me find the total cost of each of the following items.

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cburr's profile pic

cburr | Middle School Teacher | (Level 2) Associate Educator

Posted on

It might help you to know that a percent is the same number starting in the one-hundredths decimal column.  So, 5% is .05 and 5.5% is .055.  To find what 5% of something is, multiply it by .05

Also, when you have a money problem involving tax, you will need to do three steps. 

FIRST, figure out what the tax is.  This involves multiplying the price by the percent.  For example, in the first problem it's

$19.95 x .05 = $.9975

SECOND, round the tax to the nearest money amount. Since money is only two decimal places, round to the nearest 100th.  In this case the 5 rounds up the 7 to an 8, and then the 8 rounds up the 9 to 10 and the other 9 also goes to 10.  So, the $.9975 rounds up to $1.00.

THIRD, add the amount of the tax to the price.  

$19.95 + $1.00 = $20.95

lit24's profile pic

lit24 | College Teacher | (Level 3) Valedictorian

Posted on

1. 5% of 19.95 =  5/100 X 19.95 = .9975

therefore total cost = 19.95+.9975 = $20.9475

2. 6% of 499 =  6/100 X 499 = 29.94

therefore total cost =  499 + 29.94 =  $528.94

3. 5.5% of 3500 = 5.5/100 X 3500 = 192.5

therefore total cost =  $3692.5

givingiswinning's profile pic

givingiswinning | Student, Grade 10 | (Level 1) Valedictorian

Posted on

1.
19.95 x .05 = $.997

19.95 + .997 = $20.95

2.

499 x .06 = $29.94

499 + 29.94 = $528.94

3. 

3500 x .055 = $198.5

3500 + 192. 5 = $3692.5

atyourservice's profile pic

atyourservice | Student, Grade 11 | (Level 3) Valedictorian

Posted on

1) T-shirt,$19.95   tax rate,5%

19.95 x .05 = $.997

19.95 + .997 = $20.95

2)refrigerator,$499   tax rate,6%

499 x .06 = $29.94

499 + 29.94 = $528.94

3)motorcycle,$3,500   tax rate,5.5%

3500 x .055 = $198.5

3500 + 192. 5 = $3692.5

revolution's profile pic

revolution | College Teacher | (Level 1) Valedictorian

Posted on

1) tax rate is 5% so the t-shirt new price with the tax would be 105%

T-shirt= 105/100*19.95= $20.9475

2) refridgerator= 106/100*499= $528.94

3) motorcycle= 105.5/100*3500= $3692.50

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