Question

All together, Dion and Trevor worked a total of 38 hours last week. If Dion worked d hours, which expression represents the number of hours Trevor worked?

Answer 1

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Answer 2

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Answer 3

38 + D
38 - d
38/d
38+d
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2

Answer 4

Let's say
Dion worked d hours, and
Trevor worked t hours.
Then the total both worked is
d + t
We know the total they worked is 38, so we know
d + t = 38
Now we want to know how many hours Trevor worked, so we need to find what t is equal to.
We solve
d + t = 38 for t.
We subtract d from both sides to isolate t, and we get:
d + t = 38
-d - d
----------------
t = 38 - d