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Ivahew [28]
3 years ago
14

a rectangle is 12 feet long and 5 feet wide. if the length of the rectangle is increased by 25% and the width is decreased by 20

% what is the change in the area of the rectangle
Mathematics
1 answer:
Verizon [17]3 years ago
4 0

Answer:

60% decrease in area

Step-by-step explanation:

12 x5 == 60 sq feet (original area)

9 x 4 == 36 sq feet (new area)

36/60 = 6/10 = 60%

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Naddik [55]
Let's take the difference between the old and new (70 - 60) to get 10 and then divide this by the old (70) amount...10/70 = .142857 convert to a percent by moving the decimal 2 spaces to the right...  14.29 %
3 0
3 years ago
May I please have help? Thank you! And can you please tell me how you got the answer? Thank you again!
FinnZ [79.3K]

Answer:

4.05

Step-by-step explanation:

2(1 \frac{3}{4} )

multiply the following

add the sum (3.5+0.55)

you'll get 4.05

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3 years ago
A box contains eight cards numbered 2, 3, 4, 5, 6, 7, 8, 9. One card is selected at random and replaced. What is the probability
Archy [21]

Answer:

1/2

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likelihood of prime numbers =number of prime numbers /all numbers

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7 0
3 years ago
How do I answer this question?​
Novay_Z [31]

Due to the Triangle Angle Sum Theorem, we know that the sum of the interior angles of a triangle equals 180 degrees, therefore,

180 = m<1 + m<2 + m<3

180 - m<3 = m<1 + m<2

But, we also know that m<4 + m<3 = 180 degrees.

180 = m<3 + m<4

180 - m<3 = m<4

Both m<4 and m<1 + m<2  equals 180 - m<3

m<4 = m<1 + m<2

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Answer:

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3 0
3 years ago
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