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Inga [223]
3 years ago
13

A strip of wood 78 inches long is to be cut into pieces 3 3/4 inches long. How many pieces can be cut?. . A. 12. B. 26. C. 20. D

. 21.
Mathematics
2 answers:
mafiozo [28]3 years ago
6 0
20 A strip of wood 78 inches long can be cut into 20 3 3/4 inch pieces. (78/3.75 = 20.8 Since you can't have a .8 piece of wood, the answer is 20)
nika2105 [10]3 years ago
5 0
The whole length of wood is measured to be 78 inches. It is to be cut into smaller pieces measuring 3 (3/4) or 3.75 inches long. To calculate how many pieces the strip of wood can be cut, we divide 78 into the smaller measurement.

78 / 3.75 = 20.8 or 21

Therefore, the correct answer is option D, 21.
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The expression that can be used to find profit is 20x – 50 and that profit when 75 pairs of jeans are sold is 1,450.

<h3>How find profit function and the profit?</h3>

Let R represents the revenue function and C represents the cost function, the two functions can be stated correctly as follows:

R = 2x^2+17x−175

C = 2x^2−3x−125

Let P represents the expression that can be used to find profit, we therefore have:

P = R – C

P = 2x^2+17x−175 – (2x^2−3x−125)

P = 2x^2+17x−175 – 2x^2 + 3x + 125

P = 2x^2 – 2x^2 + 17x + 3x – 175 + 125

P = 20x – 50

The profit when 75 pairs of jeans are sold can therefore be calculated as follows:

P = (20 * 75) – 50

P = 1,450

Learn more about profit function here: brainly.com/question/16866047.

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