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3 years ago

Help on math please!

Mathematics

1 answer:

DedPeter [7]3 years ago

6 0

(13•4) + (3•8) +3 = 79
The total cost is $79

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Plz help me, thank you

Kruka [31]

Answer:

$P=40(1.03526)^{t}$

Step-by-step explanation:

<u>Exponential Growth </u>

The natural growth of some magnitudes can be modeled by the equation:

$P=P_o(1+r)^{t}$

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The initial number of bacteria is Po=40 and it doubles (P=2Po) at t=20 min. With that point we can find the value of r:

$2P_o=P_o(1+r)^{20}$

Simplifying:

$(1+r)^{20}=2$

Solving for 1+r:

$1+r=\sqrt[20]{2}$

$1+r=1.03526$

The exponential function that models the situation is:

$\mathbf{P=40(1.03526)^{t}}$

4 0

2 years ago

suppose that you borrow $12000 for 4 years at 6% towards the purchase of a car. use pmt to find the monthly payments and the tot

son4ous [18]

Answer:

Equivalent representations of percent problems

Step-by-step explanation:

3 0

2 years ago

How do you find a percent of a number PLEASE HEP

liberstina [14]

How to calculate percentage of a number. Use the percentage formula: P% * X = Y
Convert the problem to an equation using the percentage formula: P% * X = Y.
P is 10%, X is 150, so the equation is 10% * 150 = Y.
Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.

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2 years ago

If Jordan had his hourly salary increase from $9.25 per hour to $10.75 per hour, which of the following is

fiasKO [112]

Jordan’s salary increased by about 16.2%

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2 years ago

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An urn contains 12 balls, five of which are red. Selection of a red ball is desired and is therefore considered to be a success.

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Answer:

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