Step-by-step explanation:
6.222 answer pls mark me branilest
With graphs on paper you can visually see intersecting lines(one solution), identical lines
(infinite solutions), or parallel lines(no solutions).
This method works best for lines that have integers for solutions. The task of determining rational or irrational solutions from graphs is difficult.
The substitution method usually must be used for equations with higher exponents. The deawback of this method is having to work with fractions.
The elimination method is often the method of choice.
This method however requires that you learn to recognize when the systems produce parallel lines or have equations that represent the same lines.
Answer:
Cory bought 6.474 gallons of gasolline.
Step-by-step explanation:
The total cost of gasoline (
), measured in dollars, is given by the following expression:
Where:
- Amount of gasoline, measured in gallons.
- Unit cost, measured in dollars per gallon.
Given that 
and 
, the amount of gasoline is cleared and calculated:
Cory bought 6.474 gallons of gasolline.
