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3 years ago

Tom jogged from 10.30 to 12.15. He traveled 7 miles. What was his average rate of jogging?

1 answer:

maks197457 [2]3 years ago

4 0

From 1030 to 1100 is 30 minutes
From 1100 to 1200 is 60 minutes
From 1200 to 1215 is 15 minutes
Total Time is 105 minutes
105/7=15
Tom completes 1 mile every 15 minutes

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Please Help!!!

Marianna [84]

So, 10 x 10 is 100, x 8 is 800, your answer is D.

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3 years ago

I’m another normally distributed test score is 80 and the standard deviations is 10. How common are values in the less than 60?

lord [1]

Answer:

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

Step-by-step explanation:

If the mean μ = 80 and the standard deviation σ = 10, then we need to find the probability that an X value is less than 60.

Then we find

$P(X$

To find this probability we use the Z statistic.

$Z = \frac{X- \mu}{\sigma}$

$P(\frac{X- \mu}{\sigma}$

$P(Z$

This is the same as

$P(Z> 2)$

We look for this value in the table for the normal distribution of right queue and we have:

$P(X 2) = 0.02275$

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

6 0

3 years ago

A bacteria culture begins with eight bacteria which triple in size every week. how many bacteria exist in the culture after four

bija089 [108]

Well, you would have to multiply 8 by whatever factorial of 3, in this case 4 for the number of weeks
The equation is 8 x 3^4 which equals 648

My only thing is that they only triple in SIZE, and not multiply (as in make more of themselves) so technically speaking, there would still be 8 bacteria, just much bigger

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3 years ago

1 1/2 years is how many months

Elan Coil [88]

18
12 + 6 = 18
There Are 12 In One Year.

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3 years ago

Read 2 more answers

A rectangle's width is 5 feet less than its height. If the area of the rectangle is 564 square feet, what is its length, in feet

larisa86 [58]

We can set up an equation: x * (x + 5) = 564, where x is the length of the rectangle we are trying to solve. Using the quadratic formula to solve this, we eventually come up with approximately 21.38 as a value for x. We can verify this by typing 21.38 * (21.38 + 5) into a calculator and seeing that it approximately equals 564.

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3 years ago