646/3=x
To check it: x*3 should =646
Answer: 5.6
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Work Shown:
cos(angle) = adjacent/hypotenuse
cos(B) = AB/BC
cos(62) = AB/12
12*cos(62) = AB
AB = 12*cos(62)
AB = 5.63365875
AB = 5.6
Answer:72 are boys.
Step-by-step explanation:
40%of 180 is 72.
