ma8ddegkisage ma8ddegkisage

11-10-2016
Mathematics

Answered

What value of n makes the equation true?

0.7n+0.8n=2.1

n=3.60n=3.60

n=0.60n=0.60

n=1.40n=1.40

n=3.15

Verified Answer :

lukasshaitzma lukasshaitzma

12-10-2016

0.7n + 0.8n = 2.1
1.5n = 2.1 (add like terms(0.7+0.8=1.5))
n=2.1/1.5 (get en on its own)
n=1.40

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