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McGraw-Hill Math Grade 7 Answer Key Lesson 18.1 Customary Units of Length
Exercises
CALCULATE
Question 1.
12.5 feet is how many yards?
Answer:
12.5 feet is equal to 4.16 yards.
Explanation:
Conversion:
1 yard = 3 feet.
?? yards = 12.5 feet
=> 12.5 × 1 = 3 × ??
=> 12.5 ÷ 3 = ??
=> 4.16 yards.
Question 2.
1 mile is how many feet?
Answer:
1 mile is equal to 5280 feet.
Explanation:
Conversion:
1 mile = 5280 feet.
1 mile = ?? feet
=> 1 × ?? = 5280 × 1
=> ?? = 5280 feet.
Question 3.
144 inches is how many yards?
Answer:
144 inches is equal tp 4 yards.
Explanation:
Conversion:
1 yard = 36 inches.
?? yards = 144 inches.
=> 144 × 1 = 36 × ??
=> 144 ÷ 36 = ??
=> 4 yards.
Question 4.
3 miles is how many yards?
Answer:
3 miles is equal to 5,280 yards.
Explanation:
Conversion:
1 mile = 1760 yards.
3 miles = ?? yards.
=> 1 × ?? = 1760 × 3
=> ?? = 5,280 yards.
Question 5.
128 inches is how many feet?
Answer:
128 inches is equal to 10.66 feet.
Explanation:
Conversion:
1 feet = 12 inches.
?? feet = 128 inches.
=> 1 × 128 = 12 × ??
=> 128 ÷ 12 = ??
=> ?? = 10.66 feet.
Question 6.
10,560 yards is how many miles?
Answer:
10,560 yards is equal to 6 miles.
Explanation:
Conversion:
1 mile = 1,760 yards.
?? miles = 10,560 yards
=> 1 × 10,560 = 1760 × ??
=> 10,560 ÷ 1,760 = ??
=> 6 miles = ??
Question 7.
15.5 yards is how many feet?
Answer:
15.5 yards is equal to 46.5 feet.
Explanation:
Conversion:
1 yard = 3 feet.
15.5 yards = ?? feet
=> 1 × ?? = 3 × 15.5
=> ?? = 46.5 feet.
Question 8.
3.25 miles is how many inches?
Answer:
3.25 miles is equal to 2,05,920 inches.
Explanation:
Conversion:
1 miles = 63360 inches.
3.25 miles = ?? inches.
=> 1 × ?? = 63360 × 3.25
=> ?? = 2,05,920 inches.
Question 9.
31.5 yards is how many inches?
Answer:
31.5 yards is equal to 1,134 inches.
Explanation:
Conversion:
1 yard = 36 inches.
31.5 yards = ?? inches.
=> 1 × ?? = 36 × 31.5
=> ?? = 1,134 inches.
Question 10.
25 miles is how many yards?
Answer:
25 miles is equal to 44,000 miles.
Explanation:
Conversion:
1 mile = 1760 yards.
25 miles = ?? yards.
=> 1 × ?? = 1760 × 25
=> ?? = 44,000 miles.
Question 11.
42,931 feet is how many miles?
Answer:
42,931 feet is equal to 8.13 miles.
Explanation:
Conversion:
1 mile = 5,280 feet.
?? miles = 42,931 feet.
=> 1 × 42,931 = 5,280 × ??
=> 42,931 ÷ 5,280 = ??
=> 8.13 miles = ??
Question 12.
52 feet is how many inches?
Answer:
52 feet is equal to 624 inches.
Explanation:
Conversion:
1 feet = 12 inches.
52 feet = ?? inches.
=> 1 × ?? = 12 × 52
=> ?? = 624 inches.
Question 13.
345 yards is how many feet?
Answer:
345 yards is equal to 1,035 feet.
Explanation:
Conversion:
1 yard = 3 feet.
345 yards = ?? feet.
=> 1 × ?? = 3 × 345
=> ?? = 1,035 feet.
Question 14.
63,360 inches is how many miles?
Answer:
63,360 inches is equal to 1 mile.
Explanation:
Conversion:
1 mile = 63360 inches.
?? miles = 63360 inches.
=> 1 × 63360 = ?? × 63360
=> 63360 ÷ 63360 = ??
=> 1 mile = ??
Question 15.
31,680 inches is how many miles?
Answer:
31,680 inches is equal to 0.5 miles.
Explanation:
Conversion:
1 mile = 63,360 inches.
?? miles = 31,680 inches
=> 1 × 31,680 = 63,360 × ??
=> 31,680 ÷ 63,360 = ??
=> 0.5 miles = ??
Question 16.
7,000 yards is how many inches?
Answer:
7,000 yards is equal to 2,52,000 inches.
Explanation:
Conversion:
1 yard = 36 inches.
7,000 yards = ?? inches
=> 1 × ?? = 36 × 7,000
=> ?? = 2,52,000 inches.
Question 17.
1,590 feet is how many yards?
Answer:
1,590 feet is equal to 530 yards.
Explanation:
Conversion:
1 yard = 3 feet.
?? yards = 1,590 feet.
=> 1 × 1590 = 3 × ??
=> 1590 ÷ 3 = ??
=> 530 yards = ??
Question 18.
500 miles is how many yards?
Answer:
500 miles is equal to 8,80,000 yards.
Explanation:
Conversion:
1 mile = 1,760 yards.
500 miles = ?? yards
=> 1 × ?? = 1,760 × 500
=> ?? = 8,80,000 yards.