Answer:
32
56
24
Step-by-step explanation:
Here is the full question :
Arthur is organising his collection of DVDs He has 112 altogether. The ratio of comedy films to action to horror is 4 : 7 : 3
How many of each type of DVD does he have?
the number of each dvd arthur has = ratio / sum of ratios) x total number of DVDs
Sum of ratios = 4 + 7 + 3 = 14
Comedy films = (4/14) x 112 = 32
Action = (7/14) x 112 = 56
Horror = (3/14) x 112 = 24
Answer:
x=2
Step-by-step explanation:
9 walleye should be put into the pool to model the conditions in the lake .
<u>Step-by-step explanation:</u>
Here we have , A scientist estimates that there are 2.2×107 walleye in Lake Erie. The total ‘volume of Lake Erie is 4.83×1011 cubic meters. A pool with a volume of 200,000 cubic meter is built to model the lake. We need to find How many walleye should be put into the pool to model the conditions in the lake . Let's find out:
In 4.83×1011 cubic meters , there are 2.2×107 walleye . So , in 1 cubic meters :
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According to question we need to find , Number of walleye should be put into the pool of volume 200,000 cubic meter :
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Therefore , 9 walleye should be put into the pool to model the conditions in the lake .
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