SOLUTION
Set the function equal to zero to solve for x.
{
0
=
1
2
x
−
3
3
=
1
2
x
6
=
x
x
=
6
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⎪
⎪
⎪
⎪
⎪
⎨
⎪
⎪
⎪
⎪
⎪
⎧
0=
2
1
x−3
3=
2
1
x
6=x
x=6
The graph crosses the x-axis at the point (6, 0).
Answer is The constant x-value is 7, so the equation is x = 7.
Answer
(10x+15) + (5x)=180
X=11
Let's define the following variable:
t = total time it takes to assemble a shelving unit together.
We then have the following equation:
1/5 + 1/3 = 1 / t
Solving the equation we have:
3t + 5t = 15
8t = 15
t = 1,875 hours
Answer:
the time it takes for worker A and worker B to assemble a shelving unit together is:
t = 1,875 hours