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2 years ago

Using the Following Image, solve for x

Mathematics

2 answers:

Semenov [28]2 years ago

8 0

Answer:

$\sf x=2$

Step-by-step explanation:

$\sf 2x+3= x + 1+4$

Add numbers

$\sf 2x+3=x+5$

Subtract 3 from both sides.

$\sf 2x+3-3=x+5-3$

$\sf 2x=x+2$

Subtract x from both sides.

$\sf 2x-x=x+2-x$

$\sf x=2$

OlgaM077 [116]2 years ago

5 0

Answer:

x = 2

Step-by-step explanation:

x + 1 + 4 = 2x + 3

x + 5 = 2x +3

x + 2 = 2x

2 = x

x = 2

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astra-53 [7]

100% of the original number

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3 years ago

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shutvik [7]

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3 years ago

Use the exponential decay model, Upper A equals Upper A 0 e Superscript kt, to solve the following. The half-life of a certai

Akimi4 [234]

Answer:

It will take 7 years ( approx )

Step-by-step explanation:

Given equation that shows the amount of the substance after t years,

$A=A_0 e^{kt}$

Where,

$A_0$ = Initial amount of the substance,

If the half life of the substance is 19 years,

Then if t = 19, amount of the substance = $\frac{A_0}{2}$ ,

i.e.

$\frac{A_0}{2}=A_0 e^{19k}$

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Taking ln both sides,

$\ln(0.5) = \ln(e^{19k})$

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$\implies k = \frac{\ln(0.5)}{19}\approx -0.03648$

Now, if the substance to decay to 78% of its original amount,

Then $A=78\% \text{ of }A_0 =\frac{78A_0}{100}=0.78 A_0$

$0.78 A_0=A_0 e^{-0.03648t}$

$0.78 = e^{-0.03648t}$

Again taking ln both sides,

$\ln(0.78) = -0.03648t$

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2 years ago

What is the median of 79,85,86,90,92,93

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2 years ago

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Liula [17]

Answer:

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Step-by-step explanation:

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0: 3 lost

1: 2 lost, 1 tied

2: 2 tied, 1 lost

3: 3 tied

4: 1 won, 1 lost, 1 tied

5: 1 won, 2 tied

6: 2 won, 1 lost

7: 2 won, 1 tied

9: 3 won

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3 years ago