3m-2n=19
5m+7n=11
21m-14n=133
10m+14n=22
Now add equations
31m=155
m=5
Now let's find n
3×5-2n=19
-2n=4
n=-2
Answer: (5; -2)
area=l×w
l=area/w
l=105/5
l=15
perimater=l+w
perimater=15+7
perimeter=22
Answer:
1/7 is less than 7/12
Step-by-step explanation:
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