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3 years ago

What is the solution to the system of equations y=-3x +4 y=3x - 2 (_,_)

Mathematics

1 answer:

kvasek [131]3 years ago

4 0

$\left \{ {{y=-3x+4} \atop {y=3x-2}} \right. \\2y=2\\y=1\\\\1=3x-2\\3x=3\\x=1$

Answer: (1;1)

P.S. Hello from Russia

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Answer:

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Step-by-step explanation:

Given

$Security\ A = 2\ mins, 20\ secs$

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Required

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First, convert the given time to minutes

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$Security\ A = 2\ mins+ \frac{20}{60}\ min$

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So, we have:

$Security\ A = 2\frac{1}{3}\ min$

$Security\ B = 1\frac{2}{3}\ min$

List out the multiples of the time of both security personnel take round.

$Security\ A = 2\frac{1}{3}min,\ 4\frac{2}{3}min,\ 7min,\ 9\frac{1}{3}min,\ 11\frac{2}{3}min...$

$Security\ B = 1\frac{2}{3}min,\ 3\frac{1}{3}min,\ 5min,\ 6\frac{2}{3}min,\ 8\frac{1}{3}min,\ 10min\ ,11\frac{2}{3}min,...$

In the above lists, the common time is:

$Time = 11\frac{2}{3}\ min$

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