Question

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The temperature fell 4 degrees in the last hour. Now it is 21 degrees.

1. Write an equation to find the temperature it was 1 hour ago.
2. What was the temperature 1 hour ago?

Answer 1

1. t=21+4

2. 25º

Explanation:

1. let t=temperature. its 21 now, which is 4 less than it was before, so you add

2. 21+4=25º

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