<span>4x−3y=12
7x−3y=3 Important: you have two -3y terms. Mult one eqn by -1 to
obtain +3y, and then add the 2 equations together:
4x - 3y = 12
-7x+3y = -3
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-3x = 9, so x = -3. Subst. -3 for x in the first original equation to find y:
4(-3) - 3y = 12, or -3y = 24. Then y = -8.
Solution is (-3, -8).
It's important that you check this answer by subst. (-3, -8) back into either one of the original equations.
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Answer:
It would take 5.5 months for the two cable companies to cost the same.
Step-by-step explanation:
50x + 100 = 60x + 45
-45 -45
50x + 55 = 60x
-50x -50x
55 = 10x
/10 /10
x = 5.5
Answer is in the file below
tinyurl.com/wpazsebu
Answer: The correct option would be,
B. total += number
Step-by-step explanation:
Since, the variable used to keep the running total is called sum of the numbers or accumulator,
Thus, accumulator = total + number,
i.e. we obtain accumulator by assigning total to total plus number.
Or, accumulator is,
total += number,
Hence, OPTION 'B' is correct.
This is what I did to get my answer
