Tutors Answer Your Questions about expressions (FREE)
Question 259967: Both Sorang and Tom have an international stamp collection. Sorang has 370
stamps, which is twenty less than three times the number of stamps that are in
Tom’s collection. How many total stamps are in Tom’s international stamp collection?
Click here to see answer by mananth(16946)  |
Question 266440: Pattern of squares
Stage 1 2 squares
Stage 2 6 squares
Stage 3 12 squares
Stage 4 20 squares
Which expression can be used to determine the number of squares at stage n?
A. 5n-3
B. 4n-2
C. 2 n2
D. n2 + n
Click here to see answer by drk(1908) |
Question 266838: If an algebraic expression states,"the sum of 7 and twice a number", shouldn't the answer be 7 + 2n? I realize that 2n + 7 would also be acceptable, because of the associative property, however, aren't the key words the sum of 7 and, it doesn't say the sum of twice a number and 7.
Click here to see answer by rfer(16322) |
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