30% of the employees at a company picnic ate a hot dog for lunch. If 18 employees ate a hotdog, how many people were at the picn
2 answers:
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First we have to find midpoint of R and S.
We can use formula such for it.
and 
.
We obtained coordinates of point Q
and 
Now, we can find the line equation using formula y=ax+b.
We can substitute coordinates of P and Q to this formula and solving system of equation get the answer.
After substituting we obtaind such system
From the system of equation we obtain result
Now we can put our resuts to general line equation.
We can use formula such for it.
We obtained coordinates of point Q
Now, we can find the line equation using formula y=ax+b.
We can substitute coordinates of P and Q to this formula and solving system of equation get the answer.
After substituting we obtaind such system
From the system of equation we obtain result
Now we can put our resuts to general line equation.