Kai calculates that he spends 15% of the school day in science class. If he spends 42 minutes in science class, how many minutes
does Kai spend in school each day? Can someone tell me how to do that with fractions and cross products or something
1 answer:
You might be interested in
Answer:
or 1.414
Step-by-step explanation:
1) Find the mean. 1+2+3+4+5 = 15. 15/5= 3
2) For each data point, find the square of its distance to the mean. (4, 1, 0, 1, 4)
3) Sum the values from Step 2. 10
4) Divide by the number of data points. 10/5= 2
5) Take the square root.