Irene R. answered 03/27/20
BS in Mechanical Engineering and Certified math teacher for 13 years
Let's use the variable y to represent the smallest number.
Then we can write the following expression to represent the middle number: 3y
We can write the following expression to represent the largest number: 6 • (3y) = 18y
Now we can write and solve the following equation since the sum of the three numbers is 34:
Smallest number + middle number + largest number = 34
y + 3y + 18y = 34
Now combine like terms and use inverse operations to solve for the value of y:
y + 3y + 18y = 34
22y = 34
22y / 22 = 34 / 22
y= 34/22 or 17/11
The smallest number is 17/11
The middle number will be 3 times the smaller or 51/11
The largest number will 18 times the smallest or 306/11
To verify that the sum is 34:
17/11 + 51/11 + 306/ 11 = 374/11
374/11 is equivalent to 34.