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Laabri

Open Up - Grade 7 - Mathematics - Unit 6 - Lesson 8

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"Source: Open Up Resouces (Download for free at openupresources.org.)"

Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Here is a hanger:

Write an equation to represent the hanger.

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Here is a hanger:

Solve the equation by reasoning about the equation or the hanger.

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Explain how each part of the equation 9 = 3(x +2) is represented in the hanger.

explain what x means in the equation.

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Explain how each part of the equation 9 = 3(x +2) is represented in the hanger.

explain what 9 means in the equation.

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Explain how each part of the equation 9 = 3(x +2) is represented in the hanger.

explain what 3 means in the equation.

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Explain how each part of the equation 9 = 3(x +2) is represented in the hanger.

explain what x + 2 means in the equation.

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Explain how each part of the equation 9 = 3(x +2) is represented in the hanger.

explain what 3(x + 2) means in the equation.

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Explain how each part of the equation 9 = 3(x +2) is represented in the hanger.

explain what the equal sign means in the equation.

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Select the word from the following list that best describes each situation.

You deposit money in a savings account, and every year the amount of money in the account increases by 2.5%.

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Select the word from the following list that best describes each situation.

For every car sold, a car salesman is paid 6% of the car’s price.

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Select the word from the following list that best describes each situation.

Someone who eats at a restaurant pays an extra 20% of the food price. This extra money is kept by the person who served the food.

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

Select the word from the following list that best describes each situation.

An antique furniture store pays $200 for a chair, adds 50% of that amount, and sells the chair for $300.

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

Select the word from the following list that best describes each situation.

The normal price of a mattress is $600, but it is on sale for 10% off.

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

Select the word from the following list that best describes each situation.

For any item you purchase in Texas, you pay an additional 6.25% of the item's price to the state government.

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

Clare drew this diagram to match the equation 2x + 16 = 50, but she got the wrong solution as a result of using this diagram.

What value for x can be found using the diagram?

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

Clare drew this diagram to match the equation 2x + 16 = 50, but she got the wrong solution as a result of using this diagram.

Show how to fix Clare’s diagram to correctly match the equation.(show your work)

Use the new diagram to find a correct value for x.(Short answer)

Asemmisa {{asɛmmisaAhyɛnsode}}
17.

Clare drew this diagram to match the equation 2x + 16 = 50, but she got the wrong solution as a result of using this diagram.

Explain the mistake Clare made when she drew her diagram.