The numbers are 10 and 7
X = 10
Y= 7
X + Y = 17
X - Y = 3
Answer:
30.5 hours
Step-by-step explanation:
If he were to average 8 hours PER week for 4 weeks, his total sum would have been:
8 * 4 = 32 hours
But he fell short of it. By how much?
By
hours!
So, he practiced 1 1/2 hours LESS THAN 32 hours, so his practice time is:

So, <u>he practiced 30.5 hours in the 4 weeks</u>
Answer:
Step-by-step explanation:
If human can eat 5% more than animal then the animal eats 5 % less than human so the answer is 5% less than human