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DochEvi [55]
3 years ago
10

Simplify the expressions -8(5r+6)+9(6r+3)

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0
<span>-8(5r+6)+9(6r+3)
= -40r - 48 + 54r + 27
= 14r - 21</span>
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the area of a rectangular invitation card is 3/10 square foot. Given that the length of the card is 4/5 foot, find its perimeter
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Length = 4/5 ft
area = 3/10 ft.
Width = 3/10 &divide; 4/5 ft 
= 3/10*5/4 ft
= 3/8 ft

Perimeter = 2(L+W)
= 2(4/5+3/8) ft
= 2(32+15)/40 ft
= 47/20 ft
= 2.35 ft
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4 0
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Read 2 more answers
Find the exact length of the third side​
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