TEKS 8.8A Worksheets — Grade 8 Write one-variable equations or inequalities with variables

Amara is organizing a fundraiser bake sale at her school. She plans to sell cupcakes for $2 each and cookies for $1 each. If she bakes 30 cupcakes and 20 cookies, how much money will she make if she sells all of them?

1. 80 ✓
2. 70
3. 60
4. 50

Why: To find out how much money Amara will make, calculate the total from cupcakes and cookies. She sells 30 cupcakes at $2 each, which is 30 * 2 = 60 dollars. For the cookies, she sells 20 cookies at $1 each, which is 20 * 1 = 20 dollars. Adding these amounts together gives 60 + 20 = 80 dollars. Therefore, the correct answer is 80.

Aanya is organizing a school bake sale to raise money for her art club. She plans to sell cupcakes for $2 each and cookies for $1 each. If she sells 15 cupcakes and 24 cookies, how much money will Aanya make in total from the bake sale?

1. 54 ✓
2. 39
3. 48
4. 47

Why: To find the total money Aanya makes, first calculate the revenue from cupcakes: 15 cupcakes * $2 = $30. Next, calculate the revenue from cookies: 24 cookies * $1 = $24. Finally, add these two amounts together: $30 + $24 = $54. Therefore, Aanya will make a total of $54 from the bake sale.

Imani is saving money for a new laptop. She saved $125 last month and plans to save another $150 this month. If the laptop costs $500, how much more money does she need to save to buy it?

1. 225 ✓
2. 250
3. 375
4. 400

Why: To find out how much more money Imani needs to save, first add the amount she has already saved: 125 + 150 = 275. Then subtract this total from the cost of the laptop: 500 - 275 = 225. Thus, Imani needs to save 225 more dollars.

Nia is organizing a fundraiser for her school's art program. She plans to sell handmade bracelets. Each bracelet costs $5, and her goal is to raise $500. What does Nia need to consider when determining how many bracelets she needs to sell to reach her goal?

1. She needs to sell 100 bracelets. ✓
2. She needs to sell 120 bracelets.
3. She needs to sell 80 bracelets.
4. She needs to sell 90 bracelets.

Why: To find out how many bracelets Nia needs to sell, divide her goal of $500 by the price of each bracelet, which is $5. So, 500 ÷ 5 = 100. Therefore, Nia needs to sell 100 bracelets to reach her goal.

Fatima is planning a birthday party for her friends and needs to buy cupcakes. Each box of cupcakes contains 12 cupcakes. If she expects 24 friends to come to her party and each friend will eat 2 cupcakes, how many boxes of cupcakes should Fatima buy to have enough for everyone?

1. 4 ✓
2. 6
3. 2
4. 3

Why: First, calculate the total number of cupcakes needed. Fatima has 24 friends, and each friend is expected to eat 2 cupcakes, so she needs 24 * 2 = 48 cupcakes in total. Since each box contains 12 cupcakes, she will need 48 ÷ 12 = 4 boxes of cupcakes to have enough for everyone.

Tatiana is planting a garden in her backyard that is shaped like a rectangle. The length of the garden is 2 meters longer than twice the width. If the width of the garden is 5 meters, what is the length of the garden?

1. 12 meters ✓
2. 10 meters
3. 15 meters
4. 8 meters

Why: To find the length of the garden, we first note that the width is 5 meters. According to the problem, the length is 2 meters longer than twice the width. Therefore, we calculate the length as follows: Length = 2 * Width + 2 = 2 * 5 + 2 = 10 + 2 = 12 meters. So, the correct answer is 12 meters.

Aisha is organizing a community event to raise funds for a local charity. If each ticket to the event costs $15 and Aisha wants to sell a total of 200 tickets, what is the total amount of money Aisha hopes to raise from ticket sales?

1. 3000 ✓
2. 2500
3. 2000
4. 3500

Why: To find the total amount of money Aisha hopes to raise, we multiply the cost of each ticket by the total number of tickets sold. So, $15 * 200 = $3000. Therefore, the correct answer is 3000.

Aanya is collecting cans for a community recycling project. Last week, she collected 12 cans, and this week she collected 8 more. If she wants to collect a total of 50 cans by the end of the month, how many more cans does she still need to collect?

1. 30 ✓
2. 20
3. 18
4. 22

Why: To find out how many more cans Aanya needs, first add the cans she has already collected: 12 + 8 = 20. Then, subtract this total from her goal of 50 cans: 50 - 20 = 30. Therefore, Aanya still needs to collect 30 more cans.