Grade 7 students were surveyed to determine how many hours a day they spent, on average, doing various activities. The results a
re shown in the circle graph. About how much time do seventh-graders spend at school and eating combined? Round answers to the nearest tenth, if necessary.
1 answer:
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We are given:
Our goal in solving for any variable, in this case is x, we need to isolate x on one side of the variable. Let's start by subtracting 7x from both sides, which will cancel the +7x on the right side. We are then left with:
Now, we want to move that +10 to the other side so our x is all by itself. Let's subtract 10 from both sides, which will cancel the +10 on the right leaving us with:
Since we cannot have a coefficient when solving for x, we need to divide both sides by -3.
When we divide, our answer is: