The measure of center is mean. You would be finding the average number of minutes spent studying.
To find the mean of the data you would add all of the numbers up and divide by the total amount of numbers you added.
60+70+45+60+80+35+45
=395
395/7
=<span>56.4285714286</span>
Answer:
B.
Step-by-step explanation:
Time taken by Diana to finish her project is 5 1/3 hours
Gabe took 1 1/4 times as long as Diana, therefore Gabes time will be:
1 1/4 × 5 1/3
=5/4 × 16/3
=20/3
=6 2/3 hours
Paula took 3/4 times as long as Diana, therefore time taken by Paula will be:
3/4 × 16/3
=4 hours
30k + 70 = 20k + 80
30k - 20k = 80 - 70
10k = 10 / : 10
<u>k </u><u>=</u><u> </u><u>1</u>
Step-by-step explanation:
344m/s
344 x10 -3)x3600
1238.4km/hr
i hope my answer will help u