McGraw Hill Math Grade 7 Lesson 20.1 Answer Key Changing from Customary Units to Metric Units

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McGraw-Hill Math Grade 7 Answer Key Lesson 20.1 Changing from Customary Units to Metric Units

Exercises

CONVERT

Question 1.
The weight limit on a bridge is 16,000 pounds. What is the weight limit in kilograms?
Answer:
7,264 kg
Explanation:
The weight limit on a bridge is 16,000 pounds.
1 pound = 0.454 kg
The weight limit in kilograms on a bridge,
16000 x 0.454 = 7,264 kg

Question 2.
The directions on a plant fertilizer bag recommend using 3 pounds for a 4 × 10 garden. How many grams is that?
Answer:
1,362 g
Explanation:
The directions on a plant fertilizer bag recommend using 3 pounds for a 4 × 10 garden.
1 pound = 454 grams,
3 pounds = 454 x 3 = 1,362 g.

Question 3.
A 2-ton truck weighs how many kilograms?
Answer:
1814.36 kg
Explanation:
1 ton = 907.18 kg
2 ton truck weighs = 907.18 x 2 = 1814.36 kg.

Question 4.
A car with a 23-gallon gas tank holds how many liters of gas?
Answer:
87.055 L
Explanation:
1 gallon = 3.785 L
23 gallon gas tank holds = 3.785 x 23 = 87.055 L

Question 5.
A 24-ounce fruit juice bottle contains how many liters of fluid?
Answer:
0.7098 L
Explanation:
1 ounce = 0.029574 L
Number of liters contained by 24 ounce fruit juice bottle,
24 x 0.029574 =  0.7098 L

Question 6.
Jasmine has a 150-ft length of rope. Does she have enough rope to reach the bottom of a 40-meter cliff?
Answer:
yes, the rope is 45.75 m long.
Explanation:
Jasmine has a 150-ft length of rope.
Height of a cliff is 40-meter cliff.
1 feet = 0.305 m
150 feet = 150 x 0.305 = 45.75 m.

Question 7.
A 3-pound lobster weighs how many kilograms?
Answer:
1.362 kg
Explanation:
1 pound = 0.454 kg,
3 pounds of lobster weighs = 3 x 0.454 = 1.362 kg.

Question 8.
Would you rather have 2.4 pounds or 1,000 grams of gold?
Answer:
2.4 pounds of gold.
Explanation:
1 pound = 453.592 g
2.4 pounds = 453.529 x 2.4 = 1088.64 g
So, there is 2.4 pounds of gold.

Question 9.
About how many meters tall is a 100-ft tree?
Answer:
30.5 m
Explanation:
1 feet = 0.305 m
100 feet = 0.305 x 100 = 30.5 m.

Question 10.
How many meters tall is a 9.5-foot tree?
Answer:
2.9 m
Explanation:
1 feet = 0.305 m
9.5 feet = 0.305 x 9.5 = 2.89 or 2.9 m.