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Dafna11 [192]
3 years ago
9

Please help!! final exam!! if x varies directly as y, and x=20 when y=4, find x when y=9

Mathematics
1 answer:
Dominik [7]3 years ago
7 0

Answer:

X=45

Step-by-step explanation:

Multiple y by 5

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1) Work out what 1/5 of 12 is
To do this, we divide 12 by 5
12/5 = 2.4

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2.4 x 15 = 36

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This can be rewritten as 15  x  1/5  x  12
Multiplications alone can be performed in any order

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A factory sells backpacks for $40.00 each. The cost to make 1 backpack is $10.00. In addition to the cost of making backpacks, t
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<h2>The factory needs to sell 327 packbacks to make at least 9,800 per week.</h2>

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