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02-02-2019
Mathematics

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The sum of 5consecutive even numbers is 100.
What is the first number in this sequence?

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02-02-2019

Answer:16

Step-by-step explanation: x is an even number. x+2 is the next even number, x+4 is the third even number in the set, x+6 is the fourth, x+8 is the fifth. x+x+2+x+4+x+6+x+8=100. So 5x+20=100. 100-20=5x+20-20. 80=5x. x=16.

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