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3 years ago

59 points - 12 points whats your grade

Mathematics

2 answers:

vazorg [7]3 years ago

7 0

Answer:

59-12 would be 47 points and by all means you would have an F

Step-by-step explanation:

59-12=47

lubasha [3.4K]3 years ago

6 0

Grade would be 47th......

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How do you put 3/4% ,3/25%, and 11/20% as a decimal

Ahat [919]

First 3/4: this is actually 0.75. but the percent means we have to divide it by 100:

0.0075

3/25 is actually 0.12 (because it's equal to 12/100: i multiplied both numbers by 4)

and if it's a percent, again we "move to "move the point" or in other words divide by a 100:

0.0012 (think of dividing by 10 as of moving the coma to the left and adding zeros if there is noone to move)

the last one is equal to 55/100 (multiplied both by 5), so 11/20 % is 0.0055

I hope this was clear, let me know if you have questions!

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3 years ago

Which of the statements is false?

sesenic [268]

I'm pretty sure b is your answer

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3 years ago

Solve the system of equations<br> 2x + y = -1.5<br> y = 3.50 + 15

lukranit [14]

So first y = 3.50 + 15 = 18.5
Next 2x + y = -1.5
2x = -1.5 -y
2x = -1.5 - 18.5 = -20
x = -20/2 = -10
So
x = -10
y = 18.5

6 0

3 years ago

The population of a certain species of insects increases exponentially according to the model, P(0) = 952e0.12t where P is the n

NeX [460]

Answer:

A) 952 insects are in the original colony

B) 10494 insects are in the colony after 20 weeks

C) 25 weeks

Explanations:

The model representing the population of the species of insects

$P(t)=952e^{0.12t}$

An exponential growth is of the form:

$P(t)=P_0e^{kt}$

where P₀ is the original population

t is the time taken in weeks

Comparing the two equations:

$P_0=\text{ 952}$

952 insects are in the original colony

B. The number of insects that will be in the colony after 20 weeks

Substituting t = 20 into the function given

$\begin{gathered} P=952e^{0.12(20)} \\ \text{P = }10494 \end{gathered}$

C) If the population, P = 20000

$\begin{gathered} 20000=952e^{0.12t} \\ e^{0.12t}=\text{ }\frac{20000}{952} \\ e^{0.12t}=21.008 \\ 0.12t\text{ = ln(21.008)} \\ 0.12t\text{ = }3.04 \\ t\text{ = }\frac{3.04}{0.12} \\ t\text{ = }25 \end{gathered}$

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1 year ago

Did I put the correct answer? Please let me know ASAP! See the attachment.

Nataliya [291]

Yes the answer is correct

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3 years ago