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Scilla [17]
3 years ago
14

If a car travels 48 miles per hour, ABOUT how many miles does it travel in 5 hours? Thanks!!

Mathematics
2 answers:
zimovet [89]3 years ago
5 0
240, just multiply 48 by 5
Lunna [17]3 years ago
4 0
You do 48 miles times 5 hours so the car travels 240 miles in 5 hours
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Barbara made a bad investment. Rather than earning interest, her money is decreasing in value by 11% each week! After just one w
pochemuha

Answer: She started with $160.

It will take 6 weeks before she has less than half of what she originally invested.

Step-by-step explanation:

If her money is decreasing in value by 11% each week, it means that the rate at which it is decreasing is exponential.

We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the investment after t weeks.

t represents the number of weeks.

P represents the initial value of the investment.

r represents rate of depreciation.

From the information given,

A = $142.40

r = 11% = 11/100 = 0.11

t = 1

Therefore

142.40 = P(1 - 0.11)^1

142.40 = P(0.89)

P = 142.4/0.89

P = 160

For her to have half of what she invested originally, then

80 = 160(0.89)^t

80/160 = (0.89)^t

0.5 = (0.89)^t

Taking log of both sides to base 10

Log 0.5 = log0.89^t = tlog0.89

- 0.3010 = - 0.051t

t = - 0.3010/- 0.051

t = 5.9

Approximately 6 weeks

5 0
3 years ago
A rectangular prism has dimensions of 3x, 5x, and 6x. Write an expression for the total volume of the prism.
Evgesh-ka [11]
90because u multiple 3x in 5x equal to 15 then multiple 6x in 15x together equal to 90 prism
3 0
3 years ago
Read 2 more answers
Arnold puts $580 in a savings the account pays 3% simple interest. how much interest will he earn in 5 years
Mkey [24]

Answer:Arnold earns $87 of interest in 5 years.

Step-by-step explanation:

7 0
3 years ago
Just trying to pass math man
makkiz [27]
The answer is 3x^2 +3x
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3 years ago
Question 3
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Answer:

idk

Step-by-step explanation:

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