mwms2018sg
13.04.2020 •
Mathematics
HELP ME WILL MARK BRAINLIEST
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Ответ:
620 miles
Step-by-step explanation:
434/7=62
62x10=620
I hope this helps!
Ответ:
2n - 3m = 6
substitute m = 7 - n into 2n - 3m = 6
2n - 3m = 6
2n - 3(7 - n) = 6
2n - 21 + 3n = 6
5n - 21 = 6
5n = 27
n = 27/5
n = 5.4
m + n = 7
m = 7 - n
m = 7 - 5.4
m = 1.6
now you have m = 1.6 and n = 5.4
you can find the value of 3n - 2m
3n - 2m
=3(5.4) - 2(1.6)
= 16.2 - 3.2
= 13