Asked by jasmine20
this next one i want to make sure that what i'm answering is correct.
(1) A rectangle has sides of 3x-4 and 7x+10. Find the expression that represents its perimeter.
My answer for solving:
P=2L+2W
P=2(3w-4)+ 2(7x +10)
p=6w-6+14x+10
My final answer:
P=20x+12
P=2L+2W
P=2(3w-4)+ 2(7x +10)
<b> the w should be x</b>
p=6w-6+14x+10
<b> 2*3x= 6x (you have 6w)
2*-4 = -8 and not -6.</b>
On the next term:
<b>
2*7x=14x as you have it BUT
2*10=20 and not 10</b>
<I>These may just be typos because the final equation you have is correct.
sorry they were typos. thank you.
(1) A rectangle has sides of 3x-4 and 7x+10. Find the expression that represents its perimeter.
My answer for solving:
P=2L+2W
P=2(3w-4)+ 2(7x +10)
p=6w-6+14x+10
My final answer:
P=20x+12
P=2L+2W
P=2(3w-4)+ 2(7x +10)
<b> the w should be x</b>
p=6w-6+14x+10
<b> 2*3x= 6x (you have 6w)
2*-4 = -8 and not -6.</b>
On the next term:
<b>
2*7x=14x as you have it BUT
2*10=20 and not 10</b>
<I>These may just be typos because the final equation you have is correct.
sorry they were typos. thank you.
Answers
Answered by
Anonymous
5x=11
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