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Diano4ka-milaya [45]
3 years ago
15

Y varies directly with x. If y = 75 when x =25, find x when y = 25.

Mathematics
2 answers:
nexus9112 [7]3 years ago
5 0

75y:25x

25y:?x

75/25=3

25*3=75

x=75

masya89 [10]3 years ago
4 0

Answer:

25/3

Step-by-step explanation:

y = kx

75 = k * 25

k = 75/25 = 3

y = 3x

25 = 3x

x = 25/3

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Mashutka [201]

Answer:

The answer to your questions are:

15.- 45 mg

16.- 25 kg

17.- 185 pounds

18.- 6 mg

Step-by-step explanation:

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a = 4 years

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                                   55 pounds ------------  x

                                  x = 55 x 0.4535 / 1  

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17.-                                1 pound --------------- 0.4535 kg

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10 binder; 60% off; 6% tax
laila [671]

Answer:

I'm going to assume that the binder is $10, and that the tax is applied after the 60% off, in which case the answer is $4.24

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