Homework Explained - Math Practice 101

Dear guest, you are not a registered member. As a guest, you only have read-only access to our books, tests and other practice materials.

As a registered member you can:

Registration is free and doesn't require any type of payment information. Click here to Register.
Go to page:
Chapter 7: Solving Linear Equations; Lesson 1:Equations with the Variable on Both Sides

• Question 12

The charges for an international call made using the calling card for two phone companies are shown in the table.

a. What is the length of a phone call that would cost the same no matter which company is used?

•  minutes
• Question 12

b. Analyze Relationships

When is it better to use the card from Company B?

• Type below:

H.O.T.

Focus on Higher Order Thinking

• Question 13

Draw Conclusions

Liam is setting up folding chairs for a meeting. If he arranges the chairs in 9 rows of the same length, he has 3 chairs left over. If he arranges the chairs in 7 rows of that same length, he has 19 left over. How many chairs does Liam have?

•  chairs
• Question 14

Explain the Error

Rent-A-Tent rents party tents for a flat fee of $365 plus$125 a day. Capital Rentals rents party tents for a flat fee of $250 plus$175 a day. Delia wrote the following equation to find the number of days for which the total cost charged by the two companies would be the same:

$$365\text{x} + 125 = 250\text{x} + 175$$

Find and explain the error in Delia’s work. Then write the correct equation.

• Type below:
• Question 15

Persevere in Problem Solving

Lilliana is training for a marathon. She runs the same distance every day for a week. On Monday, Wednesday, and Friday, she runs 3 laps on a running trail and then runs 6 more miles.On Tuesday and Sunday, she runs 5 laps on the trail and then runs 2 more miles. On Saturday, she just runs laps. How many laps does Lilliana run on Saturday?

•  laps

Yes, email page to my online tutor. (if you didn't add a tutor yet, you can add one here)