3 years ago

Trevin puts 8 gallons of gas in his car and pays $22.

Mathematics

2 answers:

Leya [2.2K]3 years ago

6 0

Answer:

$2.75 a gallon

Step-by-step explanation:

22/8= 2.75

olga nikolaevna [1]3 years ago

5 0

Answer:

$2.75 gallon is the answer. Hope it helps!

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What is the solution of the system? Use any method. 3x + 2y = 7 y = –3x + 11

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Answer:

$(5,-4)$

Step-by-step explanation:

SOLVE BY SUBSTITUTION:

STEP 1: Replace all occurrences of $y$ with $-3x+11$ in each equation.

$-3x+22=7\\y=-3x+11$

STEP 2: Solve for $x$ in the first equation.

$x=5\\y=-3x+11$

STEP 3: Replace all occurrences of $x$ with $5$ in each equation.

$y=-4\\x=5$

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Answer:

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Step-by-step explanation:

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