The length of a rectangle is 8 inches more than three times the width. the perimeter is 88 inches. find the length and width.
1 answer:
We can say L as length and W as the width
L= 3w + 8
The formula for perimeter is 2L + 2W = P. We can substitute L in as "3w+8" to make the equation...
2(3w+8)+2w=88 Now, we can simplify by distributing the 2 to each term
6w+16+2w=88
8w+16=88 Then subtract 16 from each side..
8w=72
w=9
So the width is 9, so we can substitue that into the previous equation, L = 3w+8.
L=3(9)+8
L=27+8
L=35, W=9
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Perimeter = 2(a+b)
= 2(2.8+16.5)
=2(19.3)
Perimeter = 38.6
Area=base x height
=2.8 x 11.5
=32.2
X➝-x by reflection, so g(x)=-x
Answer:
90+20=110 square cm
Step-by-step explanation
(10*(14-5)+(5*(10-6)
=90+20
=110
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1.64*10^0/2.0*10^2 in scientific notation
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