Easy
when rock is in water, it takes up a certain volume, say x
so
initial+x=final volume
luckily we have final and inital
13.7ml+x=28.9ml
minus 13.7ml both sides
x=15.2ml
the volme of the rock is 15.2ml
Answer:
There would be a 1/36 chance.
X=3/5 just add 4 to 26 then combine -35x and 85x to get 50x then divide both sides by 50 and simplify
A = (B+b)·h/2 = 48 and B=b+6
2·48 = (b+6+b)·8
12 = 2b + 6
6 = 2b
b = 3 <span>inches
B = 9 </span><span>inches</span>