Question

michelle wants to buy a shirt that costs $28. she has saved $20 and has a store credit that she can apply to the cost of the shirt. a store credit is shown as a negative balance on the receipt. accessories return $12 cash refund $0 credit balance -$12 michelle lives in a state that has no sales tax on clothing. does michelle have enough money to buy the shirt? 1. underline the question that you need to answer. 2. circle the integers you must add to solve the problem. 3. what are two possible ways that michelle can solve the problem? explain. 4. circle the addition expression that represents how much michelle must pay for the shirt after the credit is applied. 28 + 12 28 + (-12) -28 + 12 -28 + (-12) 5. why is a store credit represented by a negative number?

Explanation:

Step1: Identify key amounts

The cost of the shirt is $28$, Michelle's savings is $20$, and store - credit is -$12$.

Step2: Calculate total available money

Add savings and store - credit: $20+( - 12)=20 - 12 = 8$.

Step3: Compare with cost

Since $8<28$, Michelle does not have enough money.

1.

The question to answer is "Does Michelle have enough money to buy the shirt?"

2.

The integers to add are 20 and - 12.

3.

First way: Add the savings and the store - credit ($20+( - 12)$) and compare the result with the cost of the shirt ($28$). If the sum is greater than or equal to $28$, she has enough money; otherwise, she doesn't. Second way: Subtract the store - credit from the cost of the shirt ($28-( - 12)=28 + 12$) and then compare this new cost with the savings. If the savings is greater than or equal to the new cost, she has enough money; otherwise, she doesn't.

4.

The correct addition expression is $28+( - 12)$.

5.

A store credit is represented by a negative number because it is an amount that reduces the amount the customer has to pay. It is like a "negative debt" or a credit that can be used to offset the cost of the purchase.

Answer:

1. Does Michelle have enough money to buy the shirt?
2. 20, - 12
3. First way: Add savings and store - credit and compare with shirt cost. Second way: Subtract store - credit from shirt cost and compare with savings.
4. $28+( - 12)$
5. It reduces the amount to be paid.