Substitue y=3x into the other equation to get 3x=-x+4. Solve this to get 4x=4 therefore x=1.
knowing this, y=3
Answer:
Only one solution
Step-by-step explanation:
Multiply equation by
Now from equation equation
Put the value in equation
hence only one solution exists.
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The company should produce "85" DVD's to maximize the profit.
According to the question,
The profit P for producing n DVD copies are
Let,
- The number of units be "n".
Now,
To find the minimize profit,
→
→
By substracting "3.4" from both the sides, we get
→
→
→
→
Thus the answer above is right.
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Answer:
The inverse is 4x+48
Step-by-step explanation:
y = 1/4x - 12
Exchange x and y
Solve for y
x = 1/4y -12
Add 12 to each side
x+12 = 1/4 y -12+12
x+12 = 1/4y
Multiply each side by 4
4(x+12) = 4*1/4y
4x+48 = y
The inverse is 4x+48