In order to determine the number of students surveyed, we will count the number of students in each sub-group.
Students that did not engage: 279
All three behaviours: 90
113 smoked cigrarettes and used illegal drugs:
The best estimate would be (300×7)=2100
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➷ When you add fractions, you have to have the same denominator whereas, when you multiply them, you don't have to. (In this case the denominators are already the same.) Also, multiplying the fractions would make the result smaller whereas adding them would make it larger.
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Answer:
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125m²</em></u></h2>
Step-by-step explanation:
find the area of the green rectangle and remove the area of the yellow rectangle
(12 - 2) * (16 - 2) - (6 * 2.5) =
10 * 14 - 15 =
140 - 15 = 125m²
Answer:
2.5km
Step-by-step explanation:
1000m=1km
We have 2500m
2500m=2.5km