Answer:
35 students
Step-by-step explanation:
So if every 3 boys there is 4 girls you can solve that there is 5 times the amount of girls to get to 20. So to solve for the boys you do the same.
3 x 5 = 15
That means there are 15 boys and 20 girls but we want to know the total so what you do is just add 15+20=35
So 35 total students.
Hope that helps and have a great day!
Answer:
0.1296
Step-by-step explanation:
Use the normpdf function available on basic calculators:
normpdf(16,15,2.9) = 0.1296
This is the z-score representing 16 minutes. Note that 16 is just one point above 15, so this small positive z-score makes sense.
Convert them all to 10 in the denominator.
4/10, 5/10, 1/10, 2/10, 4/10
Now which ones are greater than 2/5?
5/10 only.
To get more accurate results, and to measure the speed in words against time and see what is the speed every minute in a reliable form.
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Answer:
i am not so sure, I am so sorry!! Good lucck!
Step-by-step explanation:
