What is 3+2i simplified
1 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.
Answer:
verbal phrase for:
3 is 10 less than the quotient of a number and -2
Step-by-step explanation:
Or ... 10 less than the quotient of a number and -2 is 3
Or ... 3 is 10 less than a number divided by -2
<em>Data</em>
• Saved: $37.5
,• Needs: 0.25 of $37.5
<em>Procedure</em>
Answer: $9.4