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3 years ago

8

The area of a rectangle invitation card is 3/10 square foot. Given that the length of the card is 4/5 foot, find its perimeter.

2 answers:

Leokris [45]3 years ago

8 0

Area is length times width [A=(L)(W)], if we know that the area of the card is 3/10 and the length is 4/5 we can set up the equation 3/10=(4/5)(W) where W is width. Solve for W by deciding both sides by 4/5 and we get that W=3/8. To find the perimeter of the card were have to add up all the sides of the card so 3/8+3/8+4/5+4/5 which equals 47/20

horrorfan [7]3 years ago

7 0

Answer:

47/20

Step-by-step explanation:

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