Ok. I have one more question. The mean height of 5 students is 59.4. If one of the students leaves, the mean height becomes 61. What is the height of the absent student? I have this so far but still having problems solving it: 5(59.4)=4(61)+1(X);X=? Thank you so much.
You are doing it correctly.
5(59.4) = 4(61) + x
multiply it out...
297 = 244 + x
subtract 244 from each side
53 = x
Yeah, I thought so just wasn't sure. Thank you!
You're welcome.
To solve this problem, you can use the concept of the mean (average) formula and some algebraic manipulation.
Let's start by setting up the equation based on the given information:
(5 * 59.4) = (4 * 61) + (1 * X)
Now, let's simplify the equation step by step:
297 = 244 + X (multiply on each side)
297 - 244 = X (subtract 244 from each side)
53 = X
Therefore, the height of the absent student is 53.