14/15 divided by 1 1/20=?

Mathematics

2 answers:

aalyn [17]2 years ago

5 0

This is the answer to your question. I hope this helps!

marusya05 [52]2 years ago

5 0

14/15 x 20/11 multiply the reciprocal
14/3 4/11 the greatest common factor is 5 divide 15 & 20 by 5
14/3 x 4/11 multiply both fractions
56/33

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The amount of carbon-14 in an object is given by y = ae– 0.00012t where a is the initial amount of carbon and t is the age in ye

Reptile [31]

Answer:

The approximate age of the bone is approximately 11552 years.

Step-by-step explanation:

The current proportion of carbon-14 with respect to its original amount is defined by following formula:

$\frac{y}{a} = e^{-0.00012\cdot t}$ (1)

Where:

$y$ - Current amount of carbon-14, no unit.

$a$ - Initial amount of carbon-14, no unit.

$t$ - Time, in years.

If we know that $\frac{y}{a} = 0.25$ , then the approximate age of the bone is:

$t = -8333.333\cdot \ln \frac{y}{a}$

$t\approx 11552.453\,yr$

The approximate age of the bone is approximately 11552 years.

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2 years ago

Hayden is a manager at a landscaping company. He has two workers to landscape an entire park, Cody and Kaitlyn. Cody can complet

belka [17]

Answer: 3.4 h

Explanation:

1) The basis to solve this kind of problems is that the speed of working together is equal to the sum of the individual speeds.

This is: speed of doing the project together = speed of Cody working alone + speed of Kaitlyin working alone.

2) Speed of Cody

Cody can complete the project in 8 hours => 1 project / 8 h

3) Speed of Kaitlyn

Kaitlyn can complete the project in 6 houres => 1 project / 6 h

4) Speed working together:

1 / 8 + 1 / 6 = [6 + 8] / (6*8 = 14 / 48 = 7 / 24

7/24 is the velocity or working together meaning that they can complete 7 projects in 24 hours.

Then, the time to complete the entire project is the inverse: 24 hours / 7 projects ≈ 3.4 hours / project.Meaning 3.4 hours to complete the project.

7 0

2 years ago

Read 2 more answers

Help ASAP!!!!!!!!!!!!!!!

Advocard [28]

Answers D. and E. are correct.
I think that B might also be correct, I hope This helps.

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2 years ago

Without solving the equations which answer best describes the solutions.

telo118 [61]

ANSWER:
D. The answers will be different because after distributing the 4 in the first equation it will change the values.

Hope it helps u!

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