Good luck with answering the question. :)
2 answers:
Answer:
D.
Step-by-step explanation:
Given: Jerrod has C cards.
Linda has 38 cards.
The problem tells us that the amount of cards Linda has is 5 more than one-third of Jerrod's cards. This can be represented as an equation:
This is the same equation as the one in answer choice D. So, answer choice D. is the correct answer.
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Answer:
The labor fee is $14.25, each quart of oil costs $2.25.
Step-by-step explanation:
Let $x be thee price of each quart of oil and $y be a flat fee for labor.
1. If the oil change for one car required 5 quarts of oil, then these 5 quarts cost $5x and together with a flat fee for labor it cost $25.50. Thus,
5x+y=25.50.
2. If the oil change for another car required 7 quarts of oil, then these 7 quarts cost $7x and together with a flat fee for labor it cost $30.00. Thus,
7x+y=30.00.
3. Subtract from the second equation the first one, then
Substitute it into the first equation:
The labor fee is $14.25, each quart of oil costs $2.25.