For this case we have the following equations:

The break even point occur when C = R:
We have then:

Clearing x we have:

Then, substituting in any of the equations we have:

The break even point is:
(4, 176)
Answer:
The break even point is:
(4, 176)
Answer:
x=0.5 and y=5
Step-by-step explanation:
8x+7y=39...eqn(1)×-14
4x-14y=-68...eqn(2)×7
we now have,
-112x-98y=-546
-(28x-98y=-476)
-140x÷-140 =-70÷-140
x=0.5
to solve for y, we substitute (x=0.5) into eqn (1) or eqn 2 which ever you want...
so I'm using eqn 1.
8x+7y=39
8(0.5)+7y=39
7y=39-4
7y÷7=35÷7
y=5
therefore, x=0.5, y=5
proof: substitute both x and y values to get you the same answer as the original solutions in both equations.
we have,
8(0.5)+7(5)=39
4(0.5)-14(5)=-68
An expression is like an equation, but without an equal sign.
Therefore, you could say...
14 stones + 6 stones
or just...
14 + 6
Answer:
maths
this too hard idk like C idk bc C is betwwed B and D