Answer:
The required equation is
30+0.15x=15+0.20x
The cost will be same for two companies for 300 miles.
Explanation:
Given that,
The charges of a moving company is $ 30 plus $0.15 per mile to rent a moving van.
The charges of another company is $15 plus $0.20 per mile to rent a same van.
Assume, the charges of both companies will be same after x miles.
For the first company, the charges of x miles is= $(30+0.15x)
For the second company, the charges of x miles is= $(15+0.20x)
Since the charges are same for both companies.
So, the required equation is
30+0.15x=15+0.20x
⇒0.15x-0.20x=15-30
⇒ - 0.05x= -15
⇒x=300
The cost will be same for two companies for 300 miles.