Which expression models this phrase?
three times a number decreased by 8
3 – 8
8 – 3n
3 • (n – 8)
3n – 8
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Find the answers that use multiplication. Which are they?
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is it d
The answer would be D
why do you think it's D?
It would be D because you have 3n (any # with a variable next to it means mutilply them) and then you have -8 which would decrease 3n
C and D both use multiplication. Now it says 3 times a number decreased by 8. It's between those two answers. C states n-8 times 3, because you always work the parenthesis first. Can you tell me what D states?