3 years ago

Is it more convenient to solve the equation 0.25x+7=13x−8 using fractions or decimals?

Mathematics

1 answer:

Maru [420]3 years ago

4 0

Answer:decimals

Step-by-step explanation:

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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

3 years ago

The money in Juan's savings account earns 1 1/4% interest. Which value is less than 1 1/4 %? The values are: a. 1/4 b. 0.125 c.

aleksandrvk [35]

11/4% = (11/4)/100 = 11/400 = 0.0275;
1/4 = 0.2500;
1/80 = 0.0125;
We observe that 0.0125 < 0.0275 and 0.0114 < 0.0275 and 0.2500 > 0.0275 and 0.12500 > 0.0275;

The answers are c. and d.

7 0

4 years ago

Formula for face diagonal?

Makovka662 [10]

Answer:

Face diagonal of a cube:

Step-by-step explanation:

f2 = a2 + a. Then f2 = 2a.

8 0

3 years ago

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What percent of 250 is 100?

mr_godi [17]

Answer:

40%

Step-by-step explanation:

100 is 4p% of 250

hope it helped!

7 0

2 years ago

Which of the following prefixes represents the smallest value?

In-s [12.5K]

Milli is the answer because it just is so yeah

3 0

4 years ago

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