If you just want to know what is the least common multiple of 20 and 15, it is 60. Usually, this is written as
lcm(20,15) = 60
Answer:
Jerry has a number of 39, and Mary has a number of 50.
Step-by-step explanation:
Let's say mary's number is x, and jerry's is y.
x-y=11 and y+x=89. This means if we subtract 11 from 89 we get jerry's number times 2, which is 78. 78 divided by 2 is 39.
Jerry has a number of 39
and Mary has a number of 50.
Total number of marbles=5+3+4=12
Probability of picking a red marble =5/12
(2×100)=200
(9×1)=9
(7×1/10)=.7
(8×1/1000)=.008
Which when added together equals 209.708
The answer is y = 2/5x + 2