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andrew-mc [135]
3 years ago
9

How do you solve this algebreically? 3/8=x/20

Mathematics
1 answer:
Llana [10]3 years ago
6 0

Answer:

7.5

Step-by-step explanation:

3/8 = x/20

3(20) = 8x

8x = 60

x = 60/8

x = 7.5

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We use the formula for exponential growth:
P = Po exp(kt)
Using the population data from 1993 to 1996, we can solve for the growth rate k
76 = 72 exp(k(3))
76/72 = exp(3k)
ln (76/72) = 3k
k = ln(76/72) / 3 = 0.0180

In 10 years (2003), the population will be:
P = Po exp(0.0180t)
P = 72 exp(0.0180(10))
P = 86.22 million
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6. Find the difference.<br> a. 41 275<br> b -15 - 47<br> c. 72 (151)<br> d. 612 (-144)
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There are two formulas that can be used to find the volume of a rectangular prism. Find the volume using both formulas.
Rina8888 [55]

Answer:

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Step-by-step explanation:

The volume of a rectangular prism is given by,

V =  (\textrm {Length}) \times (\textrm {Width}) \times (\textrm {Height})  .......... (1) and

V = (\textrm {Base Area})\times (\textrm {Height}) .......... (2)

Now, the length of the given prism is \frac{1}{2} units, width is \frac{1}{2} units and the height is \frac{1}{2} units.

So. from equation (1) the volume, V = (\frac{1}{2}) \times (\frac{1}{2}) \times (\frac{1}{2}) = \frac{1}{8} cubic units.

Now, base area = B = (\frac{1}{2}) \times (\frac{1}{2}) = \frac{1}{4} sq. units.

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4 0
3 years ago
What is the radius of a circle with an area of 50.24 cubic inches? Use 3.14 for pi. Enter your answer in the box.
miss Akunina [59]

Answer:

r=4

Step-by-step explanation:

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A = pi* r^2

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Take the square root of each side

sqrt(16) = sqrt(r^2)

4 =r

3 0
3 years ago
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