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Zielflug [23.3K]
2 years ago
13

Madi has $8.80 in pennies and nickels.

Mathematics
1 answer:
shepuryov [24]2 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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If the inflation rate doubles, does the percentage decrease in buying power also double? If not, is the new percentage decrease
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Answer: It doubles

Step-by-step explanation:

Inflation erodes the value of a currency thereby reducing the purchasing power that customers have as they will only be able to buy less gods and services for the same amount as before.

An increase in inflation is directly proportional to a decrease in purchasing power which means that if the inflation rate doubles, the decrease in purchasing power doubles as well.

For instance, if inflation is 10%, the value of a dollar becomes 0.9c. If Inflation doubles to 20%, the dollar goes to 0.8c. Meanwhile the purchasing power would have gone from $1 to 0.8c which would translate to a 20% decrease.

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A small manufacturer constructs refrigerators. The fixed monthly cost is $200,000, and it costs $450 to produce one refrigerator
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Answer: Horizontal asymptote of c(x) is 450.

Step-by-step explanation:

Since we have given that

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So, Average cost function to produce x refrigerators is given by

c(x)=\dfrac{200000+450x}{x}

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Hence, Horizontal asymptote of c(x) is 450.

6 0
2 years ago
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Consider a specific chemical reaction represented by the equation aa + bb → cc + dd. in this equation the letters a, b, c, and d
noname [10]
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Usually, the number of values of c/d is one (1). (Of course, if you simply swap what you're calling "c" and "d", then you double that number, whatever it is.)
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Explain when the median of a data set is a better measure of center than the mean
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The table shows the progress of a plant's growth. The height of the plant, y, is given by the table, where x is the number of da
EleoNora [17]

Answer:

The table shows the progress of a plant's growth. The height of the plant, y, is given by the table, where x is the number of days.

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