Question

A meteorologist was monitoring the temperature outside in degrees * 1 point Fahrenheit (F) and wrote the expression 78+(-6)-5. Which statement best describes this expression?

The temperature started at 78 degrees and increased by 6 degrees, then decreased by 5 degrees.

The temperature started at 78 degrees and increased by 6 degrees, then increased by 5 degrees.

The temperature started at 78 degrees and decreased by 6 degrees, then decreased by 5 degrees.

The temperature started at 78 degrees and decreased by 6 degrees, then increased by 5 degrees.

1. thuthao
he correct statement is:
“The temperature started at 78 degrees and decreased by 6 degrees, then decreased by 5 degrees.”

### Which statement best describes this expression?

Here we have the expression:
78+(-6)-5
So we start at 78, then we subtract 6, and then we subtract 5.
This means that the initial temperature is 78, then it decreases by 6 degrees, and then it decreases again by 5 degrees.
Then the correct statement is:
“The temperature started at 78 degrees and decreased by 6 degrees, then decreased by 5 degrees.”
Which is the third statement counting from the top.