Answer:
6
Step-by-step explanation:
3(1)=3 3(2)=6 3(3)=9 3(4)=12 3(5)=15
3(6)=18 3(7)=21 3(8)=24
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3(6)=18 is closest to 20
so the greatest number of batches Xiaoming can make is 6.
s=−5/7=−0.714
Well I just used the rules for subtracting fractions backward
Start by subtracting 23 from both sides
when we have a fraction we can always multiple both sides with its reciprocal
7/6 and 6/7 on the right side will equal to 1
or