- 100 – (3x + 12)
- (100 - 12x) - 3x
- 100 - (x + x + x) - 3x)
<h3>
Further explanation</h3>
<u>Given:</u>
Huang buys
- 3 shirts that each cost the same amount,
- a pair of pants that cost $12,
and he pays with a $100 bill.
<u>Question:</u>
Which expression represents the amount of change Huang should receive?
<u>The Process:</u>
We try to solve a word problem about the single variable equation.
- Let the price of the shirt be x (in USD) per piece because the price is unknown.
- Huang buys 3 shirts at the same unit price. The total price of the shirt formed an equation
- Also, he buys a pair of pants that cost $12.
- Next, he pays for the purchase with a $100 bill at the cashier.
Calculate and prepare a total purchases.
Total purchases = shirts costs + pants costs
Total purchases is
Let us determine the expression that represents the amount of change Huang should receive.
The amount of change is total payments subtracted by total purchases.
Thus the three expressions of the amount of change are as follows:
<u>Notes:</u>
<h3>Learn more</h3>
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Keywords: Huang buys 3 shirts, that each cost the same amount, a pair of pants that cost $12, and he pays with a $100 bill, an expression represents the amount of change, select three options, a word problem, the single variable equation