7.22 is 7.2242 rounded to the neartest hundreth
so this is like cancelling out. so if you have positive 13 and have an answer of 3 how much do you need to subtract/ cancel out to get there? 10
I think you can get the rest
First the equation would look like this:
7n = 5n - 3
7n - 5n = 5n - 5n - 3 -Subtract 5n from both sides. Which gives you...
2n = -3
2n/2 = -3/2 -Divide both sides by 2
n = -1.5
Hope this helps!
Answer:
The possible cases of the children in increasing order of age are
1) Boy,Boy,Girl
2)Boy,Girl,Boy
3)Girl,Boy,Boy
4)Girl,Girl,Boy
5)Girl,Boy,Girl
6)Boy,Girl,Girl
The favorable cases in our event are 2 numbered 4 and 5
Thus the required probability is
