Writing Equations

Question 1

The equation is . Which statement should Marta say that will communicate the correct equation? Select all that apply.

Revolt · Accepted Answer

B: Fifty more than half the number of the oranges is one-hundred-and-twenty.; D: The sum of fifty and half the number of oranges is the same as one-hundred-twenty.

Question 2

Marta told Maribel “The sum of fifty and half the number of oranges is the same as one-hundred-twenty.” Maribel wrote What is her error?

Revolt · Accepted Answer

C: The should be multiplied by m.

Question 3

Question 3

Revolt · Accepted Answer

Marta is correct. This is an equation.  The statement includes an equal sign. Equations include an equal sign, expressions do not include an equal sign.

Question 4

Marta’s fruit stand sold x oranges on Thursday and twice as many on Friday. All together, on both days, she sold 108. Which bar diagram represents the equation?

Revolt · Accepted Answer

A:

Question 5

Marta’s fruit stand sold many oranges on Thursday and twice as many on Friday. All together, on both days, she sold 108. Which equation represents the problem?

Revolt · Accepted Answer

D: x + 2x = 108

Question 6

Marta’s customer bought 4 large oranges at $0.75 each and 8 small oranges at $0.50 each plus tax was a total of $7.49. She used t to represent the amount of tax. Explain her errors in the diagram.

Revolt · Accepted Answer

The total, 7.49, should be the top bar, and the variable, t, should be one of the partial bars. The prices for a certain number of oranges is also incorrect. $0.75 should be multiplied by 4 and $0.50 multiplied by 8.

Question 7

Maribel was working at the fruit stand and had to find how much change to give a customer. The customer bought 11 oranges at $0.65 each and paid with a $10 bill. Use c to represent the amount of change and choose the correct equation.

Revolt · Accepted Answer

A: 11(0.65) + c = 10

Question 8

The weight of a mandarin orange is about 6 ounces. A basket that weighs 4 ounces will hold m mandarin oranges, the total weight is 70 ounces. Which equation represents the basket of oranges?

Revolt · Accepted Answer

A: 4 + 6m = 70

Question 9

Select all that you included in your response.

Revolt · Accepted Answer

A: Marta is correct.; B: The statement has an equal sign.; C: An expression does not contain an equal sign.

Question 10

Select all that you included in your response.

Revolt · Accepted Answer

A: 7.49 should be in the top bar.; B: t should be in one of the bottom bars.; C: Wrong number of oranges and prices are matched in the multiplication.

Writing Equations Answers

More from this Course

TRY EDGENUITY HACKS