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ivanzaharov [21]
3 years ago
8

Help ITS DUE Tomorrow!!!!!!!!

Mathematics
1 answer:
vovikov84 [41]3 years ago
8 0

Answer:

C 18%

Step-by-step explanation:

To find  the percent increase ,take the new amount and subtract the old amount

12.39 - 10.50 = 1.89

Divide this by the original amount

1.89/10.50 = .18

Multiply this by 100 to get the percent

.18*100% = 18%

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Answer:

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Part 2 :

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Step-by-step explanation:

Part 1:

Let the width of the rectangle = w

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Area of the rectangle is given as

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60=w^2+4w

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Hence this expression represents the area of the rectangle. Solving which for w will give us the width of the rectangle.

Part 2:

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either (w+10) = 0

or

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not possible as the dimension can not be 0

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3 years ago
Me ajudem nessa equação :<br> 10x - 12 + 10= +18 - 20
nirvana33 [79]
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