A rectangle has a length 6 more than its width. If the width is decreased by 2 and the length
Secreased by 4, the resulting rectangle has an area of 21 square units. What is the length of the
original rectangle? What is ratio of the original rectangle's area to the new rectangle's area?
What is the perimeter of the new rectangle?

The original length is 11.

The original width is 5.

Ratio is 21:55

Perimeter of the new triangle (the 7x3 one, not original) is 20.

Step-by-step explanation:

7*3=21

7+4=11

3+2=5

11*5=55

7+7+3+3=20

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answer: d.) the total number of protons and neutrons is 15

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