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olga nikolaevna [1]
2 years ago
7

Two qualities, x and y, if x is doubled what happends to y?​

Mathematics
1 answer:
sukhopar [10]2 years ago
7 0

Answer:

it gets doubled too bc if one quantity is doubled then the other is too

Step-by-step explanation:

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You invested money in two funds. Last year, the first fund paid a dividend of 9% and the second a dividend of 3%, and you receiv
pishuonlain [190]

Answer: $7800 was invested at 9%

$5900 was invested at 3%

Step-by-step explanation:

Let x represent the amount invested in the fund that paid a dividend of 9%.

Let y represent the amount invested in the fund that paid a dividend of 3%.

Last year, the first fund paid a dividend of 9% and the second a dividend of 3%, and you received a total of $879. This means that

0.09x + 0.03y = 879- - - - - - - - - 1

This year, the first fund paid a 10% dividend and the second only 1%, and you received a total of $839. It means that

0.1x + 0.01y = 839 - - - - - - - - - -2

Multiplying equation 1 by 0.1 and equation 2 by 0.09, it becomes

0.009x + 0.003y = 87.9

0.009x + 0.0009y = 75.51

Subtracting, it becomes

0.0021y = 12.39

y = 12.39/0.0021

y = 5900

Substituting y = 5900 into equation 1, it becomes

0.09x + 0.03 × 5900 = 879

0.09x + 177 = 879

0.09x = 879 - 177

0.09x = 702

x = 702/0.09

x = 7800

4 0
3 years ago
Find the degree of 2x7 y+4x9 -9y
Lynna [10]

Answer:

I believe the answer is 9

5 0
2 years ago
If a leaky faucet drips 10 ounces of water per minute how many gallons per hour is that
Anna [14]
10 times 60 is 600 so the awnser 600
8 0
3 years ago
Would it be 4? Or would I do 1 divided by four
Lunna [17]

Answer:

k = 4

Step-by-step explanation:

The graph represents y and x in direct proportion with equation

y = kx ← k is the constant of proportionality

To find k use the point (1, 4), that is x = 1, y = 4

k = \frac{y}{x} = \frac{4}{1} = 4

7 0
3 years ago
HELP ASAP PLEASE.
Schach [20]

Answer:

5(6)81 because the are

Step-by-step explanation:

6•82

8 0
2 years ago
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