SOLUTION: Shawn is taking a science test. So far he answered 12 out of 15 questions correctly. then Shawn's teacher tells the class that there are addidtional questions on the back of the te
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Question 333536: Shawn is taking a science test. So far he answered 12 out of 15 questions correctly. then Shawn's teacher tells the class that there are addidtional questions on the back of the test. Shawn answers all of the questions on the back of the test correctly.
If x represents the number of additional questions on the back of the test, which rational expression models the situation?
a. 12+x/15+x
b. 15+x/12+x
c. 12/15*x
d.12/15
I believe that the proper answer would be A. because he got 12/15 right, but then the additional (x) on the back he also got right, so 12x would stand for the questions he got right, while 15x stands for the total problems...I am wondering if someone could tell me if i am correct in this assumption...
thanks in advance
Becca Answer by Alan3354(69443) (Show Source):