Question

Write an expression to represent Vivian's change in elevation from -9.6 feet at the bottom of the Ferris wheel to 12.3 feet at the top.

a) Change=12.3−(−9.6)
b) Change=12.3+(−9.6)
c) Change=12.3×(−9.6)
d)None of the above

Answer 1

The change in elevation for Vivian from the bottom to the top of the Ferris wheel is represented by the expression 12.3 - (-9.6), which equals 21.9 feet.

Step-by-step explanation:

To represent Vivian's change in elevation from -9.6 feet at the bottom of the Ferris wheel to 12.3 feet at the top, we need to calculate the difference between her final elevation and her initial elevation. Therefore, the correct expression is Change = 12.3 − (− 9.6). This calculation makes use of the fact that subtracting a negative is the same as adding the positive equivalent of that number. So the change in elevation is 12.3 feet + 9.6 feet, which equals 21.9 feet.