3 years ago

Put a check by all the factors of 15 answers : 1, 2, 3, 4, 5, 10, 15. please answer ASAP

Mathematics

2 answers:

Effectus [21]3 years ago

8 0

One three five and 15

loris [4]3 years ago

4 0

Answer are 1,3,5,and 15

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A certain radioactive isotope decays at a rate of 2% per 100 years. if t represents time in years and y represents the amount of

gregori [183]

We rewrite the equation:
y = y0 * e ^ (- 0.0002 * t)
In this equation:
I = represents the initial amount of the isotope
We have then:
89% of the isotope left:
0.89 * y0 = y0 * e ^ (- 0.0002 * t)
We clear the time:
e ^ (- 0.0002 * t) = 0.89
Ln (e ^ (- 0.0002 * t)) = Ln (0.89)
-0.0002 * t = Ln (0.89)
t = Ln (0.89) / (- 0.0002)
t = 582.6690813
round to the nearest year:
t = 583 years
Answer:
There will be 89% of the isotope left in about:
t = 583 years

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3 years ago

What does 3/m = 6/7 equals<br>

katrin [286]

Answer:

7/2 = m

Step-by-step explanation:

We can use cross products to solve

3 6

--- = ------

m 7

3*7 = 6*m

Divide each side by 6

21/6 = 6m/6

7/2 = m

7 0

3 years ago

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Evaluate 0.3y + y/x when y = 10 and z =5

coldgirl [10]

Answer:

Step-by-step explanation:

0.3*10=3

10/5=2

--------------------

3+2=5

8 0

3 years ago

A baker bakes 50 muffins. 1/5 of the muffins are chocolate chip. 1/2 of the muffins are blueberry. The rest are cinnamon. How ma

vitfil [10]

Answer:

15 muffins are cinnamon.

Step-by-step explanation:

Given that:

Number of muffins baked = 50 muffins

Chocolate chip muffins = 1/5 of 50 = $\frac{1}{5}*50$

Chocolate chip muffins = 10 muffins

Blueberry muffins = 1/2 of 50 = $\frac{1}{2}*50$

Blueberry muffins = 25

Cinnamon muffins = Muffins baked - chocolate chip muffins - blueberry muffins

Cinnamon muffins = 50 - 10 - 25

Cinnamon muffins = 50 - 35 = 15

Hence,

15 muffins are cinnamon.

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3 years ago

Geometry math question

kompoz [17]

It’s going to be C.

4 0

3 years ago

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