Mathematics, 30.10.2019 14:31 twistedhyperboles

Subtract and simplify

23 ft 7 in
- 13 ft 11 in

18 gal 2 qt
- 5 gal 3 qt

21 yd 1 ft 7 in
- 12 yd 2 ft 9 in

Answers: 2

Show answers

Answers

Answer from: zabomoxx5ll

9 ft 8 in12 gal 3 qt8 yd 1 ft 10 in

Step-by-step explanation:

There are several different ways you can work problems like this. The method you may prefer may be different from the one I prefer. At least, they include ...

You can treat the smaller units as a fraction of the larger unit: 23 7/12 -13 11/12. Then subtracting mixed numbers proceeds in any of the usual ways. You may even be able to use a calculator for this.You can "subtract by adding": 8 inches added to the subtrahend makes it 14 ft 7 in; then adding 9 ft makes it 23 ft 7 in. The difference is then seen to be 9 ft 8 in.You can subtract the different units separately, then "make change" or "borrow" as required. 23'7" -13'11" = 10'(-4)" = 9'8". (This is probably the method I prefer.) An on-line calculator may be able to handle the mixed units to your satisfaction (see attached).

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1. There are 12 inches in a foot.

23 ft 7 in - (13 ft 11 in) = (23 -13) ft (7 -11) in = 10 ft (-4) in = 9 ft 8 in

2. There are 4 quarts in a gallon.

18 gal 2 qt - (5 gal 3 qt) = (18 -5) gal (2 -3) qt = 13 gal (-1) qt = 12 gal 3 qt

3. There are 3 feet in a yard and 12 inches in a foot.

21 yd 1 ft 7 in -(12 yd 2 ft 9 in) = (21 -12) yd (1 -2) ft (7 -9) in

= 9 yd (-1) ft (-2 in)

= 8 yd 2 ft (-2) in

= 8 yd 1 ft 10 in

Subtract and simplify 23 ft 7 in - 13 ft 11 in 18 gal 2 qt - 5 gal 3 qt 21 yd 1 ft 7 in - 12 yd 2 ft

Answer from: Quest

$\begin {array}{c|c}\underline {\quad x\quad}& \underline{\quad y\quad}\\ -2& 4\\-1& 2\\0& 0\\1& 2\\ 2& 4\\\end{array}$

step-by-step explanation:

y = | -2(-2) | → y = | 4 | → y = 4 ⇒ (-2, 4)

y = | -2(-1) | → y = | 2 | → y = 2 ⇒ (-1, 2)

y = | -2(0) | → y = | 0 | → y = 0 ⇒ (0, 0)

y = | -2(1) | c → y = | -2 | → y = 2 ⇒ (1, 2)

y = | -2(2) | → y = | - 4 | → y = 4 ⇒ (2, 4)

Answer from: Quest

7.3

step-by-step explanation:

81+30=111180 minus 111=691/2×19=9.569÷9.5=7.263157895~7.3
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