You divide the problem on both sides of the equation. Example would be 3x=9x . divide that by 3 and you get "x=3x"
Answer:
the area is 740 cm and the perimeter is 148
Answer:
The price of the regular gasoline is $2.46, while the premium is $2.67.
Step-by-step explanation:
Let the price of regular gasoline be "x", while the price for the premium be "y", The sum of the amount of each type of gas multiplied by its cost should be equal to the total paid, therefore:

We also know that the premium gas costs 0.21 more than the regular one, therefore:

We can apply the second expression on the first, in order to solve for "x".


The price of the regular gasoline is $2.46, while the premium is $2.67.
You need to ask your teacher for any help and to evaluate and double check each step.