Grade 7 McGraw Hill Glencoe - Answer Keys Answer keys Chapter 6: Equations and Inequalities; Lesson 3: Solve Equations with rational Coefficients

Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 6: Equations and Inequalities; Lesson 3: Solve Equations with rational Coefficients

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Question 23 (request help)
A high-speed train travels 100 miles in $\frac{2}{3}$ hour. Which speed represents the rate of the train?
- 50 mph
- 75 mph
- 100 mph
- 150 mph

Question 24 (request help)
Short Response Nithia earns $6.25 per hour at work. She wants to earn $100 for a class camping trip. Use the equation 6.25h = 100 to find h, the number of hours she will have to work to earn the money.

hours

Question 25 (request help)
The table shows the results of a survey.

Suppose 420 students are surveyed. Which equation can be used to find the number of students s who prefer rap?
- $\frac{1}{4}s=420$
- $s = \large\frac{1}{4} · 420$
- $s +\frac{1}{4}= 420$
- $420 + s =\frac{1}{4}$

Use the order of operations to evaluate each expression

$6 \times 4 - 2 =$

$70 - 5 \times 4 =$

$18 \div 2 - 7 =$

Question 29 (request help)
Write add, divide, multiply, and subtract in the correct order to complete the following sentence. When using the order of operations to evaluate an expression,
.

Write and evaluate an expression for each situation.

Question 30 (request help)
Used paperback books are $0.25, and hardback books are $0.50. If you buy 3 paperback books and 5 hardback books, how much money do you spend?
Expression: Solution:

Question 31 (request help)
Suppose you order 2 pizzas, 2 garlic breads, and 1 order of BBQ wings. How much change would you receive from $30?
Expression: Solution: