Answer:the cost of 1 gallon of gas is $2.31
the cost of 1 quart of oil is $1.7
Step-by-step explanation:
Let x represent the cost of 1 gallon of gas.
Let y represent the cost of 1 quart of oil.
A motorist paid $26.50 for 10 gallons of gas and 2 quarts of oil. It means that
10x + 2y = 26.5 - - - - - - - -1
Another motorist paid $23.58 for 8 gallons of gas and 3 quarts of oil. This means that
8x + 3y = 23.58 - - - - - - -- - - - 2
Multiplying equation 1 by 3 and equation 2 by 2, it becomes
30x + 6y = 79.5
16x + 6y = 47.16
Subtracting, it becomes
14x = 32.34
x = 32.34/14 = 2.31
Substituting x = 2.31 into equation 1, it becomes
10 ×2.31 + 2y = 26.5
23.1 + 2y = 26.5
2y = 26.5 - 23.1 = 3.4
y = 3.4/2 = 1.7
Answer:
The answer is the option C
Answer: y= -12x^2/25+24x-268
I just used a calculator but its 32.5
Answer:
if you mean like an example, cooking instructions, if they ask for a certain amount of time for this many of the item, but not the amount you want, you can use another example of time to find unit rate then figure out how long you need to cook it for with your desired number of items
Step-by-step explanation:
