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Zielflug [23.3K]
3 years ago
13

Madi has $8.80 in pennies and nickels.

Mathematics
1 answer:
shepuryov [24]3 years ago
7 0
Let p = number of pennies.
Let n = number of nickels.

We are given that n= 2p and the total value is $8.80.

We know that a penny = $0.01 and that a nickel = $0.05.

So $0.01p + $0.05n = $8.80.

Substitute 2p for n:
$0.01p + $0.05*2p = $8.80

$0.01p + $0.10p = $8.80

$0.11p = $8.80

p = 80
So n = 2p = 2*80 = 160

Thus there are 80 pennies ($0.8) and 160 nickels ($8.00). The value of all the coins is $8.80.
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\frac{3}{1}Answer:

Step-by-step explanation:

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put them into slope intercept form

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Let me know if it's wrong.

Hope this helps

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2 years ago
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7

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Mrrafil [7]
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A spherical helium balloon has a diameter of 30 cm. How much helium is needed to fill the balloon, in cubic centimeters? Round y
GaryK [48]
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<span>dr/dt = 30/[4pi(361)] </span>

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<span>A = 4pir^2 </span>
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3 0
3 years ago
The American flag is customarily made with its width and length in the ratio of 10 to 19. Which of the following dimensions is i
saul85 [17]
You have not provided the options, therefore, I cannot give an exact answer. However, I can help you with the procedures.

We are given that the ratio between the width and the length of the flag is 10 to 19.
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Therefore, to get the correct choice, all you have to do is divide the width by the length, if the result is 10/19, then the dimensions given are correct.

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