A long-distance athlete can run 1212 kilometer in 3 minutes. How many kilometers can he run in an hour?

Mathematics

1 answer:

Mrrafil [7]3 years ago

8 0

1212 km in 3 min
3min • 20= 60 min = 1 hour
1212km • 20 = 24, 240km

You might be interested in

There are twenty classes at each of two middle schools. The number of students in each class at each school is shown in the dot

tatuchka [14]

Answer:

There are about 2 more students in each class at Oak Middle School than at Poplar Middle School.

Step-by-step explanation:

The rest of the question is the attached figure.

It is required to compare between the mean number of students for the data in the plots.

The mean is sum of all data divided by the number of data.

The data set of Poplar Middle School:

20,20,20,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,24

So, The mean = 435/20 = 21.75

<u>The data set of Oak Middle School:</u>

20,21,21,22,22,23,23,23,23,24,24,24,25,25,26,26,27,27,28,29

So, The mean = 483/20 = 24.15

The difference in mean = 24.15 - 21.75 = 2.4

So, the correct statement is:

There are about 2 more students in each class at Oak Middle School than at Poplar Middle School.

7 0

3 years ago

Read 2 more answers

Sam’s Swimming Pool Cleaning has an annual gross profit of $88,400. Sam charges $25 per week for each of his customers for 52 we

m_a_m_a [10]

To get how many customers Sam has, write an equation that will relate to the gross profit. Let n be the customers. Since for 52 weeks, Sam charges $25 per week per person, multiply n by the number of weeks and the charge. The equation is written as $88,400 = 52 weeks x $25 per week x n persons. Divide $88,400 by the product of 52 weeks and the $25 charge. The answer will be 68. The annual operating expense $48,000 is just there to make confusion.

3 0

3 years ago

Read 2 more answers

Help me oh please!!!!!!!!

GREYUIT [131]

Answer:

$\frac{23a^2+6}{12a^2}$