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valentina_108 [34]

3 years ago

9

The sum of 3 times a number and another number is 10. The bigger number is 5 more than 2 times the smaller number. What are the

numbers?

1 answer:

rodikova [14]3 years ago

7 0

Answer:

7 and 1

Step-by-step explanation:

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How to compare ratios?

iren2701 [21]

You can compare ratios by using a colen, the word "to", and a fraction. Examples

3:4
3 to 4
3/4

3 0

3 years ago

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(2,3), (4,-7) midpoint

Gnoma [55]

Answer:

(3, -2)

Step-by-step explanation:

2+4 = 6

3-7 = -4

6/2 = 3

-4/2 = -2

8 0

2 years ago

The function A=A_oe^{-0.01155x} A = A o e − 0.01155 x models the amount in pounds of a particular radioactive material stored in

vivado [14]

They are essentially asking us to solve:

$357=900e^{-0.01155x} \implies\\ \frac{357}{900}=e^{-0.01155x} \implies\\ \ln{\frac{357}{900}}=-0.01155x \implies \\ x\approx 80.1$

Solving this equation for x tells us that it will take around 80.1 years for the materials in the vault to reduce to 357 pounds.

4 0

3 years ago

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Please help! I attached the question below.

kompoz [17]

Answer:

$\frac{2(c+2)}{c(c-2)}$

Step-by-step explanation:

$\frac{c^{2}-4 }{6c^{4}+15c^{3}}=\frac{(c-2)(c+2)}{c(6c^{3}+15c^{2}) }$

Identity used:

$a^{2}-b^{2}=(a-b)(a+b)$

$\frac{c^{2}-4c+4}{12c^{3}+30c^{2}}=\frac{(c-2)^{2}}{2(6c^{3}+15c^{2}) }$

Now let us divide the modified expressions:

$\frac{(c-2)(c+2)}{c(6c^{3}+15c^{2})}$ ÷ $\frac{(c-2)^2}{2(6c^{3}+15c^{2}) }$

we get:

$\frac{2(c+2)}{c(c-2)}$

5 0

3 years ago

Im having trouble with these and ive been staring at my screen for over an hour- I just need to know the answer-

irinina [24]

Answer:

(-3, 4)

It doesn't show any coordinates so I assume that the origin is where the x and y axes intercept

4 0

3 years ago

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