Posted by **alanaR.** on Thursday, August 26, 2010 at 10:11pm.

ASTRONOMY- an object's weight on mars can be found by multiplying 0.38 by the object's weight on mars.

a) an object weighs p pounds,on earth. write an expression for its weight on mars. my answer is 0.38p, is it correct?

b)dana weights 120 pounds, and her bicycle weighs 44 pounds. how much would dana and her bicycle together weigh on mars? my answer is 6232. is it correct?

- algebra 1 -
**drwls**, Thursday, August 26, 2010 at 10:36pm
Your first sentence is wrong. You must have meant to write

"An object's weight on Mars can be found by multiplying 0.38 by the object's weight on Earth."

a) is correct

b) is wrong. It should be 164*0.38 = 62.32

You omitted a crucial decimal point.

- algebra 1 -
**janae**, Wednesday, August 29, 2012 at 9:17pm
I don't understand why we need algebra in our lives.. like x+y=xy WFT? O.o

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