jacobbecker400p2rbm0 jacobbecker400p2rbm0

02-02-2018
Mathematics

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Help Question 1: Which of the following expressions are equivalent to −3.5(2 − 3n) − 2.5n? A. −7 − 8n B. −7 + 8n C. −7 − 13n D. −7 − n(10.5 − 2.5) E. −7 + n(10.5 − 2.5)

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aacameron14 aacameron14

02-02-2018

The correct answer is A. -7 - n(10.5 -2.5), because - 3.5 * 2 = -7, -3.5 * 3 = 10.5

So the equation would become -7 - 10.5n -2.5n

Then you combine like terms and the like terms are -10.5n and -2.5, So you would take -10.5n - 2.5n which will come out to be -8

and the answer would -7 - 8n

Hope this helped

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