To convert from feet to inches, multiply by 12. For example, the number of inches in 2 feet is 12x2 inches. If one board has a length of (x+3) feet and a second board has a length of (7x-1) inches, express their total length in inches as an expression?

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Answer 1 · 2018-08-11T13:37:49

#19x+35# inches

As first board has a length of #x+3# feet, its length in inches is

#12xx(x+3)=12xxx+12xx3=12x+36# inches

The length of second board is #7x-1# inches

Hence their total length is

#12x+36+7x-1#

= #19x+35# inches

To convert from feet to​ inches, multiply by 12. For​ example, the number of inches in 2 feet is 12x2 inches. If one board has a length of (x+3) feet and a second board has a length of (7x-1) inches, express their total length in inches as an expression?