Lesson 8: Practice Problems
Problem 1
Draw a diagram of
and a diagram of when is 1. Draw a diagram of
and of when is 2. Draw a diagram of
and of when is 3. Draw a diagram of
and of when is 4. When are
and equal? When are they not equal? Use your diagrams to explain.
Problem 2
Do
and have the same value when is 5? Are
and equivalent expressions? Explain your reasoning.
Problem 3
Check that
and have the same value when is 1, 2, and 3. Do
and have the same value for all values of ? Explain your reasoning. Are
and equivalent expressions?
Problem 4 From Unit 6 Lesson 7
80% of
Write an equation that shows the relationship of 80%,
, and 100. Use your equation to find
.
Problem 5 From Unit 6 Lesson 5
For each story problem, write an equation to represent the problem and then solve the equation. Be sure to explain the meaning of any variables you use.
Jada’s dog was
inches tall when it was a puppy. Now her dog is inches taller than that. How tall is Jada’s dog now? Lin picked
pounds of apples, which was 3 times the weight of the apples Andre picked. How many pounds of apples did Andre pick?
Problem 6
Find these products.
Problem 7
Calculate