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Math  /  Numbers & Operations

QuestionZack bought a coat for $69.78\$ 69.78. He paid with a $100\$ 100 bill and received $26.73\$ 26.73 in change. How much was the sales tax?

Studdy Solution

STEP 1

1. Zack paid with a \$100 bill.
2. The cost of the coat before tax was \$69.78.
3. Zack received \$26.73 in change.
4. The total amount paid including sales tax is the difference between the \$100 bill and the change received.

STEP 2

1. Calculate the total amount paid.
2. Calculate the sales tax.

STEP 3

Calculate the total amount paid by subtracting the change received from the \$100 bill.
Total amount paid=100−26.73 \text{Total amount paid} = 100 - 26.73

STEP 4

Perform the subtraction to find the total amount paid.
Total amount paid=100−26.73=73.27 \text{Total amount paid} = 100 - 26.73 = 73.27

STEP 5

Calculate the sales tax by subtracting the original cost of the coat from the total amount paid.
Sales tax=73.27−69.78 \text{Sales tax} = 73.27 - 69.78

STEP 6

Perform the subtraction to find the sales tax.
Sales tax=73.27−69.78=3.49 \text{Sales tax} = 73.27 - 69.78 = 3.49
The sales tax Zack paid is:
$3.49\boxed{\$3.49}

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