# math, algebra

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.

P=2L+2W
P=2(3w-4)+ 2(7x +10)
p=6w-6+14x+10

P=20x+12

P=2L+2W
P=2(3w-4)+ 2(7x +10)
the w should be x

p=6w-6+14x+10
2*3x= 6x (you have 6w)
2*-4 = -8 and not -6.

On the next term:

2*7x=14x as you have it BUT
2*10=20 and not 10

These may just be typos because the final equation you have is correct.

sorry they were typos. thank you.

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2. 👎 0
3. 👁 161
1. 5x=11

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