C++ for Engineers and Scientists
C++ for Engineers and Scientists
4th Edition
ISBN: 9781133187844
Author: Bronson, Gary J.
Publisher: Course Technology Ptr
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Textbook Question
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Chapter 1.1, Problem 1E

(Practice) a. To convert inches (in) to feet (ft), the number of inches should be multiplied by which of the following conversion factors?
i. 12 in/1 ft   ii. 1 ft/12 in
b. To convert feet (ft) to meters (m), the number of feet should be multiplied by which of the following conversion factors?
i. 1 m/3.28 ft   ii. 3.28 ft/1 m
c. To convert sq.yd to sq.ft, the number of sq.yd should be multiplied by which of the following conversion factors?
i. 1 sq.yd/9 sq.ft   ii. 9 sq.ft/1 sq.yd
d. To convert meters (m) to kilometers (km), the number of meters should be multiplied by which of the following conversion factors?
i. 1000 m/1 km   ii. 1 km/1000 m
e. To convert sq.in to sq.ft, the number of sq.in should be multiplied by which of the following conversion factors?
i. 144 sq.in/1 sq.ft   ii. 1 sq.ft/144 sq.in
f. To convert minutes (min) to seconds (sec), the number of minutes should be multiplied by which of the following conversion factors?
i. 60 sec/1 min   ii. 1 min/60 sec
g. To convert seconds (sec) to minutes (min), the number of seconds should be multiplied by which of the following conversion factors?
i. 60 sec/1 min   ii. 1 min/60 sec

(a)

Expert Solution
Check Mark
Program Plan Intro

To determine the correct option to be multiplied with the number of inches, to convert inches into feet.

Program Description Answer

Option ii) 1ft/12 in correct.

Explanation of Solution

Explanation

Normally, 1 in =112ft

Checking both the given option by multiplying it with 1 inch, and if we get the above given expression then the generated result is true.

i) 12 in1 ft ,

  1 in×12 in1 ft=12 in21 ft .

This option is false.

ii) 1 ft12 in

  1 in×1 ft12 in=1 ft12 

This option is true.

Conclusion

Hence, the option ii) is correct.

(b)

Expert Solution
Check Mark
Program Plan Intro

To determine the correct option to be multiplied with the number of feet, to convert feet into meters.

Program Description Answer

The option i) 1m/3.28 ftis correct.

Explanation of Solution

Explanation

Normally, 1 ft=0.3048 m

Checking both the given option by multiplying it with 1 feet, and if we get the above given expression then the generated result is true.

i) 1 m3.28 ft ,

  1ft×1 m3.28 ft=1 m3.28 =0.3048m .

This option is true.

ii) 3.28 ft1 m

  1 ft×3.28 ft1 m=3.28 ft21 m 

This option is false.

Conclusion

Hence, the option i) is correct.

(c)

Expert Solution
Check Mark
Program Plan Intro

To determine the correct option to be multiplied with the number of sq. yd, to convert sq. yd into sq. ft.

Program Description Answer

The option ii) 9 sq.ft1 sq. yd is correct.

Explanation of Solution

Explanation

Normally, 1 sq. yd=9 sq. ft

Checking both the given option by multiplying it with 1 sq. yd, and if we get the above given expression then the generated result is true.

i) 1 sq. yd9 sq. ft ,

  1 sq. yd×1 sq. yd9 sq. ft=1 ( sq. yd)29 sq. ft .

This option is false.

ii) 9 sq.ft1 sq. yd

  1 sq. yd×9 sq.ft1 sq. yd=9 sq.ft

This option is true.

Conclusion

Hence, the option ii) is true.

(d)

Expert Solution
Check Mark
Program Plan Intro

To determine the correct option to be multiplied with the number of meters, to convert metres(m) into kilometer(km).

Program Description Answer

The option ii) 1km1000m is correct.

Explanation of Solution

Explanation

Normally, 1 m=11000 km

Checking both the given option by multiplying it with 1 m, and if we get the above given expression then the generated result is true.

i) 1000 m/1 km ,

  1 m×1000m1km=1000m21km .

This option is false.

ii) 1km1000m

  1m×1km1000m=11000km

This option is true.

Conclusion

Hence, the option ii) is true.

(e)

Expert Solution
Check Mark
Program Plan Intro

To determine the correct option to be multiplied with the number of sq. in, to convert sq. ft into sq. ft.

Program Description Answer

The option ii) 1 sq.ft144 sq. in is correct.

Explanation of Solution

Explanation

Normally, 1 sq. in=0.0069 sq. ft

Checking both the given option by multiplying it with 1 sq. in, and if we get the above given expression then the generated result is true.

i) 144 sq.in1 sq. ft ,

  1 sq. in×144 sq.in1 sq. ft=144 ( sq. in)21 sq. ft  .

This option is false.

ii) 1 sq.ft144 sq. in

  1 sq. in×1 sq.ft144 sq. in=1144sq. feet

This option is true.

Conclusion

Hence, the option ii) is true.

(f)

Expert Solution
Check Mark
Program Plan Intro

To determine the correct option to be multiplied with the number of minutes, to convert minutes(min) into seconds(sec).

Program Description Answer

The option i) 60 sec1 min is correct.

Explanation of Solution

Explanation

Normally, 1 min=60 sec

Checking both the given option by multiplying it with 1 min, and if we get the above given expression then the generated result is true.

i) 60 sec1 min ,

  1 min×60 sec1 min=60sec .

This option is true.

ii) 1 min60 sec

  1 min×1 min60 sec=1min260sec

This option is false.

Conclusion

Hence, the option i) is true.

(g)

Expert Solution
Check Mark
Program Plan Intro

To determine the correct option to be multiplied with the number of seconds, to convert seconds(sec) into minutes(min).

Program Description Answer

The option ii) 1 min60 sec is

correct.

Explanation of Solution

Explanation

Normally, 1 sec=160min

Checking both the given option by multiplying it with 1 sec, and if we get the above given expression then the generated result is

true.

i) 60 sec1 min ,

  1 sec×60 sec1 min=60sec21min .

This option is false.

ii) 1 min60 sec

  1 sec×1 min60 sec=160min

This option is true.

Conclusion

Hence, the option ii) is true.

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