Answer: 0.5 times 0.3 = 0.15
0.4 times 0.3 = 0.12
0.6 times 0.3 = 0.18
0.8 times 0.2 = 0.16
Step-by-step explanation:
Answer:2
Step-by-step explanation:
Answer:
22 1/2 hours
Step-by-step explanation:
There are several ways you can get there. One way is to use table values to form a sum of 60:
cars = 32×2 - 8×(1/2) = 64 -4 = 60
Then the corresponding hours are ...
hours = 12×2 - 3×(1/2) = 24 -1.5 = 22.5
It will take 22.5 hours to wax 60 cars.
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Another way to get there is to use proportions:
hours/cars = 3/8 = ??/60
Multiply by 60 to find ??
(60)(3/8) = ?? = 180/8 = 22.5 . . . . hours
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We can do these things because we have determined the relationship between hours and cars is proportional: 8/3 = 16/6 = 32/12. If it weren't proportional, some other strategy would be needed to answer the question.
5 to the power of 3=125
125 times 5=625
625 to the power of -4=6.55 and if you were to round that it would be 7,so 7 is your answer