12×4=48 , 68×12 is a much greater number.
It can help because 9×4 =36, and 9×8=72. if you divide 72 by 2 you get 36 which is the answer to 9 ×4. basically because nine is the same in both problems you are multiplying by 4 (and you know 4 is half of 8) you can assume that multiplying the sum of 4 and 9 that you will get the sum of 8 and 9.
2 1/2 groups of 4/5 fill in two. Another way of saying that is what is 2 divided by 4/5. The answer is 2 1/2.
~Deceptiøn
Answer:
8 minutes.
Step-by-step explanation:
Let m represent number of minutes.
We have been given that Mike is biking to catch up with his sister who is already 1200 yards ahead of him. His sister is biking at a speed of 450 yards per minute.
So total distance covered by Mike's sister after m minutes would be
.
Mike bikes at a speed of 600 yards per minute, so total distance covered by Mike in minutes would be
.
Now, we will equate both expressions to find minutes at which both distances will be equal as:




Therefore, it will take after 8 minutes for Mike to catch his sister.
Answer:
-1
Step-by-step explanation:
in numeracy numbers on right hand are bigger than numbers on left hand -1 is bigger than all negative integers. they all fall on the left of -1