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Tpy6a [65]
2 years ago
11

7th grade math - sales tax (please help)

Mathematics
1 answer:
arlik [135]2 years ago
6 0

Answer: $6.67

Step-by-step explanation: Divide 18 by 2.7 which would be $6.67.

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A town has population of 5000 and grows at 3.5% every year. To the nearest tenth
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It would take approximately 11 years for this population to reach 7300.

<h3>How to calculate the time?</h3>

Based on the information provided, the future size of the population can be modelled by using an exponential function:

F = Pe^rt

Substituting the given parameters into the formula, we have;

7300 = 5000e^{0.035 × t}

7300/5000 = e^{0.035t}

1.46 = e^{0.035t}

Taking the ln of both sides, we have:

ln(1.46) = ln(e^{0.035t})

0.378 = 0.035t

t = 0.378/0.035

Time, t = 10.8 ≈ 11 years.

Read more on exponential functions here: brainly.com/question/15926922

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3 years ago
X-y=-2 <br> 2x+y=8 <br> find the solution:
stira [4]
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What is the lcm of 5 and 6?
LenaWriter [7]

Answer: 30

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