lindsaybusick lindsaybusick

25-01-2021
Mathematics

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The sum of three numbers is 100. The third number is 2 times the first. The second number is 8 more than the first. What are the numbers?

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MsRobbins MsRobbins

25-01-2021

Ok call your first number x.

The second number is x+8.

The third number is 2x.

Add them. 2x +x +8+x =100
Combine like terms. 4x +8 =100

Subtract 8 from both sides 4x =92
X (your first number) is 23
Your second number (x +8) is 31
Tour third number (2x) is 46

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