Answer:
27
Step-by-step explanation:
total=average ×no.
18×40=720 the no. of coins for all children
12×24=288 no. of coins for boys
720-288=432 for all girls
one girl, mean,divide 432 by 16= 27
Answer:
59.9 words per minute
Step-by-step explanation:
You can round it to 60.
Answer:
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
It is 21 since 21 = 3 * 7.
The other 3 numbers are prime.
The mean is 4.9 miles per day