700/10 = 70
A heart beats 70 times in a minuet.
70 * 2 = 140
It takes 2 minuets for a heart to beat 140 times.
First, lets figure out how many pencils we will need. so we can do that by 4 pencils x 28 children and we get 112. Then if there are 8 pencils in a package, we divide 112 by 8 and get 14
125.
16 (10 and 6) divided by 100 is 6.25. Times two is 12.5. (For 200) times 10 for 10 marbles.