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3 years ago

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For every 30 letters that Maria sent in a month, she received 40 letters. What is the ratio in simplest form of the number of le

tters sent to the number of letters received by Maria that month?

1 answer:

Sidana [21]3 years ago

8 0

3/4 Is the answer to your question

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Select 2 of the following

siniylev [52]

Answer:

OPTION C: The ratio is a constant.

OPTION E: The ratio is equal to b.

Step-by-step explanation:

Given: $f(x) = a.b^x$

The ratio of f(x + 1) and f(x) = $\frac{f(x + 1)}{f(x)} = \frac{a.b^{x + 1}}{a.b^x}$

Since, $a^{x + 1} = a^x. a$

$\implies \frac{f(x + 1)}{f(x)} = \frac{a.b^x.b}{a.b^x}$

Cancelling out $a.b^x$ we get:

$\frac{f(x + 1)}{f(x)} = b$

This shows that the ratio is always a constant and that constant is equal to b.

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Step-by-step explanation:

Check the image above dear.....

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3 years ago

Kim’s hair grows a half inch per month. How many months will it take for her hair to grow 12 inches?

Contact [7]

Answer:

24 months

Step-by-step explanation:

Cross-multiply

0.5 inches -------------- 1 month

12 inches ---------------- x months

0.5/12 = 1/x ===> 0.5x = 12 ===> x = 12/0.5 ===> x = 24 months

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The answer is $911.60.

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