Mark Ran 15 miles in 135 minutes. Assume Mark maintains a constant speed. What's the number of minutes it takes to run 1 mile

Mathematics

1 answer:

Mrac [35]3 years ago

4 0

The answer is 9

If you divide 135 by 15 then you get 9 so that means 9 minutes to run 1 mile

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Kate needs 3 pieces of ribbon. She needs 2 pieces that are each 8.5 inches long and another piece that is 7.75 inches long. She

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B is the correct answer

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2 years ago

Respuesta de (-0.5)²

Vladimir79 [104]

Answer:

0.25

Step-by-step explanation:

we have

$(-0.5)^2$

we know that

$-0.5=-\frac{1}{2}$

substitute

$(-\frac{1}{2})^2=(-\frac{1}{2})(-\frac{1}{2})$

Remember that

$(-1)(-1)=1\\(-1)(1)=(-1)$

$(-\frac{1}{2})(-\frac{1}{2})=\frac{1}{4}=0.25$

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3 years ago

Is it possible for y to be an independent variable?????????

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3 years ago

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The population of a city is 45,000 and decreases 2% each year. If the trend continues, what will the population be after 15 year

Sloan [31]

The answer is 31,500.
Let's clarify some things :
1% of 45,000 is 450
Maybe you're wondering why , it's actually very simple .
Just move the decimal to the left once if you want to find 10% , move the decimal twice if you want to find 1%.
We now that 1% equals 450. Then 2% equals to....
Well just add another 1% .
450 + 450 or 450 times 2
Which equals 900.
Now we want to find what's the population after 15 years.
900 times 15= 13,500
But that's not the answer ....
That's what is decreasing.
45,000 - 13,500= 31,500
That's why the answer is 31,500.

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3 years ago

Evaluate each geometric series described<br> 1-4+16-64...., n=6

xz_007 [3.2K]

Answer:

- 819

Step-by-step explanation:

The sum to n terms of a geometric series is

$S_{n}$ = $\frac{a(r^n-1)}{r-1}$