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Algebra 8 Online
OpenStudy (anonymous):

The length of a rectangle is 8 inches and the width is x inches. What is the perimeter, in inches? A. 16 + 2x B. 10 + 2x C. 16 + x D. 10 + x

OpenStudy (whpalmer4):

perimeter is the sum of the lengths of all of the sides. if the length is 8 inches, and the width is x inches, what is the sum of all of the sides?

OpenStudy (anonymous):

oh nvm i got the answer

OpenStudy (whpalmer4):

what did you get?

OpenStudy (anonymous):

i got B. 10+2x

OpenStudy (whpalmer4):

how on earth did you get that? the rectangle has 2 sides which are 8 inches long, and 2 sides which are x inches long. the perimeter is the sum of the lengths of all of the sides.

OpenStudy (whpalmer4):

8, 8, x, and x add them up

OpenStudy (anonymous):

idk xD im not that good at math

OpenStudy (whpalmer4):

draw a picture. label it. go around the rectangle and add up the sides. 8+8+x+x =

OpenStudy (whpalmer4):

8+8 = 10 only if you are doing arithmetic in base 16, which you aren't :-)

OpenStudy (anonymous):

oh woops

OpenStudy (anonymous):

yah i saw what i was doing

OpenStudy (whpalmer4):

confuse 8 and 5 maybe?

OpenStudy (anonymous):

yah lol

OpenStudy (anonymous):

thank you for your help :)

OpenStudy (whpalmer4):

you're welcome!

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