Haley needs to rent a moving van for the day. company a charges $75 plus $0.25 per mile. company b charges $50 plus $0.75 per mile. for how many miles is company b less expensive than company a?

Haley needs to rent. Till 49.99 miles, Company B will be less expensive than company A.

Solution:

Given that  

Haley needs to rent a moving van for the day.

Charges of company A are $75 plus $0.25 per miles  

That means $75 is fixed price and $0.25 depends on travelling miles.

Charges of company B are $50 plus $0.75 per miles  That means $50 is fixed price and $0.75 depends on travelling miles.

Need to calculate for how many miles is company B less expensive than company A.

Let’s assume for "x" miles company B is less expensive than company A.

Lets create expression for charges of each company for "x" miles.

For company A,

Fixed charges = $75

For 1 mile charges = $0.25

So for x miles = 0.25x

Total charges of company A for x miles

For company B,

Fixed charges = $50  

For 1 mile charges = $0.75

So for x miles = 0.75x

Total charges of company B for x miles  

we need to find value of x such that  

=> 50 + 0.75x < 75 + 0.25x

=> 0.75x - 0.25x < 75 – 50

=> 0.5x < 25

=> x < 50

So till 49.99 miles , Company B will be less expensive than company A.

At 50 miles charges of both the company will be same.  

i do not know this sorry : (

4th option is correct xy=-10

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