Title: Math 7 Write One-Step Equations
Course: quiz duplicate error

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[Image: Incredible Dive]

Q: Dragonflies are one of the fastest of the flying insects. Some dragonflies can move at a speed of 50 feet per second. Write an equation to find the time, t, it takes a dragonfly to travel 400 feet.
- 400t = 50 (That would be 400 feet per second!)
- 50t = 400
- t + 50 = 400 (You need to multiply, because it is 50 feet for each second.)
- \[\frac{t}{50}\] = 400 (This would mean that the dragonfly only travels 1/50 foot in 1 second.)
A: 50t = 400

Q: Solve your equation: If a dragonfly moves at a speed of 50 feet per second, how long does it take the dragonfly to travel 400 feet?

Make sure to put units on your answer.
A: 8

Q: You want to know how much your backpack weighs. You decide to weigh your sister alone and then your sister carrying the backpack. Your sister weighs 90 pounds without the backpack and 123 pounds with the backpack. Write an equation to find the weight, b,  of the backpack.
- 90 + b = 123
- b - 90 = 123 (This is saying that the backpack subtract 90 pounds is 123 pounds.)
- 90b = 123 (Are we doing 90 times the weight of the backpack?)
- \[\frac{b}{90}\] = 123 (This divides the weight of the backpack into 90 equal groups.)
A: 90 + b = 123

Q: Solve your equation: What is the weight of the backpack?

Make sure to write units on your answer.
A: 33

Follow these directions to respond to this question:

1. Right click on the image at the bottom of these directions.

2. Choose Save As and save the image to your desktop.

3. Open Paint on your computer, then open the image you saved to your computer in Paint.

4. Answer the question using the text and drawing tools.

5. Save the picture.

6. Return to this question. Click the Insert Image Button:  [Image: Insert Image Button]

7.  Click Find or Upload an Image.

8.  Click Upload a File on the left hand side.

9. Click Choose a File and select the file you just made.

10. Click Insert

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[Image: Guinea Pig Oranges]

You divide a bag of trail mix into 8 portions for you and your friends to have as snacks on a bike ride. Each portion weighs 3 ounces. Write an equation to find the total weight of the trail mix.

Make sure to write what the variable represents.

Q: Solve your equation: What was the total weight of the trail mix?

Make sure to write units on your answer.
A: 24

Max is saving 1/5 of his money for a vacation. He has $25 saved for the vacation. Write an equation for the total amount of money he has made.

Make sure to write what the variable represents.

Q: Solve your equation: How much total money has Max made?

Make sure to put a $ on your answer.
A: 125
Feedback ("15"): That is 1/5 of the $75. We are wondering what the total is if $75 is the 1/5 part.