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Anarel [89]
3 years ago
6

For the inverse variation equation xy=k, what is the constant of variation,k, when x = -3and y=-2

Mathematics
1 answer:
const2013 [10]3 years ago
8 0

Answer:

6

Step-by-step explanation:

xy=k

Value of k ; when ; x = - 3 and y = - 2

Put x = - 3 and y = - 2 into the equation :

(-3)(-2) = k

-3 * - 2 = k

6 = k

The constant of variation k = 6

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Credit card balance each month:

First month: 1020 .00

Second month: 1040.4 0

Third month: 1061,208

Fourth month: 1082.43

Here we have to calculate the interest and add it to capital.

That is, 2% of 1000

First month:

    Interest = 1000 (2/100)

    Odds1 = 1020

Second month

Capital 1020

    Interest = 1020 x 0.02 = 20.4

    Odds2 = 1040.4

Third month

Capital = 1040.4

    Interest = 1040.4 x 0.02 = 20.808

    Odds3 = 1061,208

Fourth month

Capital = 1061,208

   Interest = 1061.208 x 0.02 = 21.22

   Odds = 1082.43

Therefore the credit card balance each month:

First month: 1020 .00

Second month: 1040.4 0

Third month: 1061,208

Fourth month: 1082.43

Learn more about credit card balance here: brainly.com/question/17604713

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The question is incomplete. Completed question is given below:

A person owes $1000 on a credit card that charges an interest rate of 2% per month. Complete this table showing the credit card balance each month if they do not make any payments. Month total bill in dollars11,00021,02031,040.40

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2 years ago
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A baby weighed 7.25 at birth. at the end of 8 month,the baby weighed 2 1/2 times its birth weight. how many pounds did the baby
Artyom0805 [142]
2 1/2 is in mixed fraction. So let's first make it into improper fraction.

(2*2 + 1) / 2 = 5/2

5/2 of 7.25 = (5*7.25) / 2 = 18.125 

in short, 18.125 is the answer

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3 years ago
Multiply each equation by a constant that would help to eliminate the y terms. 2x-5y=-21 3x-3y=-18 What are the resulting equati
anyanavicka [17]

Answer:

6x - 15y = -63

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Step-by-step explanation:

We need to multiply the two equations by a constant that will eliminate the y terms.

The two equations are:

2x - 5y = -21

3x - 3y = -18

Let us multiply the first by 3 and the second by 6. The resulting equations will be:

6x - 15y = -63

15x -15y = -90

Note: To solve the system of equations we can simply subtract the first from the second.

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