poreally3132 poreally3132
  • 13-02-2019
  • Mathematics
contestada

A stick 7 inches long is broken into two pieces so that one piece is twice as long as the other one. How long are the two pieces? Answer:

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grujan50
grujan50 grujan50
  • 13-02-2019

Answer:

The correct answer is:  one piece 14/3 inches and second piece 7/3 inches

Step-by-step explanation:

Let's marked variables as x and y

Now we have that is:

x + y = 7  and y = 2 x

When we replace y in the first equation we get:

x + 2 x = 7  => 3 x = 7  => x = 7/3

Now we will replace x in the y = 2 x and get:

y = 2 · 7/3 = 14/3

x = 7/3 and y = 14/3

God with you!!!

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