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Arisa [49]
4 years ago
12

the width of a rectangle is three more than half the length. its perimeter is 78 centimeters, find the length and width

Mathematics
1 answer:
cupoosta [38]4 years ago
8 0

Answer:

length=l=21

width = w =18

Step-by-step explanation:

 

78 = 2(2w +3 +w)

 

39 = 2w + 3+ w

 

39= 3w + 3

 

36=3w

 

18 =w

 

l=w+3 =18+ 3=21

 

so dimensions are

 

length=l=21

width = w =18

I think this is the answer, if not i'm so sorry :/

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4 0
1 year ago
the sum of 16 numbers is 240.The average of 6 of those numbers is 10. the average of the remaining numbers is
Ivan

Answer:

18

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