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taurus [48]
3 years ago
5

The scoop of an excavator holds 27 ft3 of sand. If the capacity of a freight car is 40 tons of sand and we know that 1 ft3 of sa

nd weighs 0.5 tons, how many freight cars can be filled with 120 loads?
Mathematics
2 answers:
kozerog [31]3 years ago
5 0
27ft³=x tons
1ft³=0.5 tons

\frac{27cubicfeet}{x_t_o_n_s} = \frac{1cubic foot}{0.5 tons}

Cross multiply
1x=13.5tons
x=13.5tons

So one scoop/load carries 13.5 tons of sand. Lets see how many 120 loads can carry.

13.5tons*120loads=1620 tons of sand

Now lets see how freight cars it would take to hold 1620 tons of sand

1620/40=40.5 freight cars

Since you can't have .5 of a freight car, lets round 40.5 up to 41

Answer=41 freight cars

Rus_ich [418]3 years ago
3 0

Answer:

40.5

Step-by-step explanation:

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