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denis-greek [22]
3 years ago
10

suppose x and y vary inversely and y=10 when x=4. write a function that models the variation then find y when x =90

Mathematics
1 answer:
ankoles [38]3 years ago
4 0
X = k/y
4 = k/10
k = 4 x 10 = 40
Thus, x = 40 / y

90 = 40 / y
y = 40/90 = 4/9
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Answer:

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3 years ago
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<u><em>Answer:</em></u>

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<u><em>Explanation:</em></u>

Assume that the number we are looking for is x

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5 0
3 years ago
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Felix's parents opened a savings
Crazy boy [7]

The money in the Felix's account will be $6798 when he is 21.

<u>Step-by-step explanation:</u>

It is given that,

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<u>To find the money in Felix's account after 21 years :</u>

The formula used here is,

⇒ A = P(1+r/n)^{nt}

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Therefore, The money in the Felix's account will be $6798 when he is 21.

4 0
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Answer:4

Step-by-step explanation:

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