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Nataliya [291]
3 years ago
14

Turn 2 2/5 into a percent

Mathematics
1 answer:
Naddika [18.5K]3 years ago
6 0
2/5 = 0.4
2.4 x 100 = 240%
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Whats the abswer to 1/2x+3/4=1
g100num [7]
<em>*Because of BODMAS, 1/2x=x/2.</em>

1/2x+3/4=1

1/2x+3/4=4/4

1/2x=4/4-3/4

1/2x=1/4

x/2=1/4

x=2/4

x=1/2
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If g(x)=<br> x+1<br> and h(x) = 4 – x, what is the value of (9.0) (-3)?
konstantin123 [22]

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3 years ago
The circumference of a circle is 15 meters. Determine the diameter. Use 3 for pie.
erik [133]

Answer:

4.77

if u use 3 for pie its 5

Step-by-step explanation:

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5 0
3 years ago
A typical cup of coffee contains about 100 mg of caffeine and every hour approximately 16% ofthe amount of caffeine inthe body i
Over [174]

Answer:

a) \frac{dC}{dt} = rC

And for this case we can rewrite the model like this:

\frac{dC}{C} = r dt

If we integrate both sides we got:

ln C = rt + k

If we use exponentials for both sides we got:

C = e^{rt} e^k = C_o e^{rt}

For this case C_o = 100 mg and r = -0.16

So then our model would be given by:

C(t) = 100 e^{-0.16 t}

Where t represent the number of hours

b) C(5) = 100 e^{-0.16*5}= 44.9329

Step-by-step explanation:

Part a

For this case we can assume the proportional model given by:

\frac{dC}{dt} = rC

And for this case we can rewrite the model like this:

\frac{dC}{C} = r dt

If we integrate both sides we got:

ln C = rt + k

If we use exponentials for both sides we got:

C = e^{rt} e^k = C_o e^{rt}

For this case C_o = 100 mg and r = -0.16

So then our model would be given by:

C(t) = 100 e^{-0.16 t}

Where t represent the number of hours

Part b

For this case we can replace the value t=5 into the model and we got:

C(5) = 100 e^{-0.16*5}= 44.9329

7 0
3 years ago
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