Asked by Reece

At noon, a hot air balloon was at an elevation of 2,400 feet. One hour later it was at an elevation of 1,400 feet.

A: write an expression you can use to find the altitude from noon to one.

B: solve the expression.

i am not sure what to do on this.
Answered by Ms. Sue
2400 - x = 1400

2400 - 1400 = x

1000 = x

Answered by Reece
would the answer be 1,000?
Answered by Ms. Sue
Yes.
Answered by Riana
Yesterday’s high temperature was −8°F. Today’s high temperature is −3°F.
a. Write a numerical expression you can use to find the change in temperature from yesterday to today.
b. Evaluate your expression and explain what it means.

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