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ollegr [7]
4 years ago
5

Malcom has $638.54 in his checking account he must maintain a $500 balance to avoid a fee he wrote a check for $159.50 today wri

te and solve an inequality to solve for the least amount of money he needs to avoid a fee
Mathematics
1 answer:
Elanso [62]4 years ago
6 0

Answer:

$20.96

Step-by-step explanation:

He has $638.54 in his account and writes a check for $159.50. The amount of money he needs to stay at or above $500 is denoted by x.

638.54 - 159.50 + x >= 500

After writing a check, Malcom has $479.04 left in his account, which is below his cutoff.

479.04 + x >= 500

He must add at least x amount of dollars to his account to avoid a fee.

x >= 20.96

In order to avoid a fee, Malcom must add a minimum of $20.96 to his account.

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Answer:

It is the one you selected

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Step-by-step explanation:

To convert this into a fraction, you would have to move the "3" to the fraction. But the position of the "3" would ALWAYS be below the number which in this case would be "7" so it would be x ^ 7/3

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3 years ago
Q · 7/9 = 4<br> What is q?
FrozenT [24]

Answer:

q = 36/7  or 5 1/7

Step-by-step explanation:

q · 7/9 = 4

Multiply each side by 9/7

q · 7/9 *9/7 = 4*9/7

q = 36/7

If we want it as a mixed number instead of an improper fraction

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Step-by-step explanation:

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In 1979, the price of electricity was $0.05 per kilowatt-hour. The price of electricity has increased at a rate of approximately
sesenic [268]

The exponential equation that can can be used to determine how many years it will take for the price per kilowatt-hour to reach $0.10 is:

0.1 = 0.05(1.025)^t

  • The values are: A = 0.05, b = 1.025, c = 0.1.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

A(t) = A(0)(1 + r)^t

In which:

  • A(0) is the initial value.
  • r is the growth rate, as a decimal.

In this problem:

  • In 1979, the price of electricity was $0.05 per kilowatt-hour, hence A(0) = 0.05
  • The price of electricity has increased at a rate of approximately 2.05% annually, hence r = 0.025.

Then, the equation is:

A(t) = A(0)(1 + r)^t

A(t) = 0.05(1 + 0.025)^t

A(t) = 0.05(1.025)^t

The time in years it will take for the price per kilowatt-hour to reach $0.10 is <u>t for which A(t) = 0.1</u>, hence:

0.1 = 0.05(1.025)^t

  • The values are: A = 0.05, b = 1.025, c = 0.1.

You can learn more about exponential equations at brainly.com/question/25537936

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