Answer:
At 20 miles both companies cost will be same.
Explanation:
Let Number of miles be 'x'.
Given:
Quick movers charges $50 a day and $0.50 per mile .
So we can say Total charge is equal to sum of per day charge plus number of miles multiplied by cost of per mile.
framing in equation form we get;
Quick movers charges =
![50+0.5x](https://img.qammunity.org/2020/formulas/mathematics/high-school/dij56jhlhq1bpv8277rgadw5hc24nxvl3h.png)
Also Given:
ABC movers charges $45 a day and $0.75 per mile .
So we can say Total charge is equal to sum of per day charge plus number of miles multiplied by cost of per mile.
framing in equation form we get;
ABC movers charges =
![45+0.75x](https://img.qammunity.org/2020/formulas/mathematics/high-school/ecb9s2tbau0h3sufoez9bc9r1h9qww8psi.png)
We need to find the number of miles at which both companies cost are are same.
Solving to find the same we get;
![50+0.5x=45+0.75x](https://img.qammunity.org/2020/formulas/mathematics/high-school/8fkh25lzlwy3a3yfm2i9sgc4bi313fbjtn.png)
Combining like terms we get;
![0.75x-0.5x=50-45\\\\0.25x=5](https://img.qammunity.org/2020/formulas/mathematics/high-school/u6hlg2ljbnq3tkye3i6by5djzyatb7669t.png)
By Division property of equality we will divide both side by 0.25 we get;
![(0.25x)/(0.25) =(5)/(0.25) \\\\x= 20 \ miles](https://img.qammunity.org/2020/formulas/mathematics/high-school/alllsyhesbarvo3i9ox5j9bvx3x1gvtsmf.png)
Hence at 20 miles both companies cost will be same.