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3 years ago

NEED HELP ASAP!

Mathematics

1 answer:

Inga [223]3 years ago

3 0

Answer:

The answer to your question is:

61.- 25

62.- 26

Step-by-step explanation:

61.-

2(5x + 5) + 2(2x) = 360

10x + 10 + 4x = 360

14x = 360 - 10

14x = 350

x = 350/14

x = 25

62.-

2(4x - 4) + 2(3x + 2) = 360

8x - 8 + 6x + 4 = 360

14x - 4 = 360

14x = 360 + 4

14x = 364

x = 364 / 14

x = 26

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3 years ago

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3 years ago

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3 years ago

Read 2 more answers

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm.

Vesnalui [34]

Answer:

After how many years is the fish population 100?

x=3.97 years

Step-by-step explanation:

The fish population increases by a factor of 1.5 each year. We have the equation that represents this situation

$f (x) = 20 (1.5) ^ x$

Where x represents the number of years elapsed f(x) represents the amount of fish.

Given this situation, the following question could be posed

After how many years is the fish population 100?

So we do $f (x) = 100$ and solve for the variable x

$100 = 20 (1.5) ^ x\\\\\frac{100}{20} = (1.5)^x\\\\ 5= (1.5)^x\\\\log_{1.5}(5) = log_{1.5}(1.5)^x\\\\log_{1.5}(5) = x\\\\x =log_{1.5}(5)\\\\x=3.97\ years$

Observe the solution in the attached graph

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3 years ago