Common denominator between 3 and 4 is 12. 2/3 becomes 8/12, and 3/4 becomes 9/12. Add them to get 17/12, which equals 1 and 5/12 lbs.
I think the answer is d. the intersection of the 2 lines
4.7a+8.2a-6.5a=0
We simplify the equation to the form, which is simple to understand
4.7a+8.2a-6.5a=0
We move all terms containing a to the left and all other terms to the right.
+4.7a+8.2a-6.5a=0
We simplify left and right side of the equation.
+6.4a=0
We divide both sides of the equation by 6.4 to get a.
a=0
