Answer:
2/3
Step-by-step explanation:
Let's define z = x-y, so solving for z will tell us exactly what we want to know. Then we can substitute for x: x = z+y, and our equations become ...
7(z+y)+3y = 8 ⇒ 7z +10y = 8
6(z+y)-3y = 5 ⇒ 6z +3y = 5
We can eliminate the y-variable by subtracting 3 times the first equation from 10 times the second:
10(6z +3y) -3(7z +10y) = 10(5) -3(8)
60z +30y -21z -30y = 50 -24 . . . . eliminate parentheses
39z = 26 . . . . collect terms
z = 26/39 = 2/3 . . . . . divide by the coefficient of z and reduce
The value of x - y is 2/3.
_____
The attached graph shows (x, y) = (1, 1/3), so x - y = 1 - 1/3 = 2/3.
50/8 can be simplified by dividing top and bottom by 2, getting 25/4. this is also equal to 6 and 1/4
Answer:
the mean is 13, i believe! good luck
Step-by-step explanation:
Step-by-step explanation:
parallelogram area is:h×base
10×14=140
we have two so
140×2=280
traingle is:h×base/2
18-10=8=h
8×14/2=56
56×3=168
168+280=448
<span> For this case we have the following equation:
</span>
<span> Where,
x: number of chips
c (x): total cost
To find the fixed cost, we must find the intersection with the y axis of the given equation.
So we have that for x = 0:
</span>
<span>
Therefore, the fixed production cost is given by:
</span>
<span>
Answer: The fixed cost of producing the chips is: c (0) = 12000</span>
