In a hall, there are 75 chairs. Out of these 60% are plastic and 40% are metal. Find the number of chairs of each type ?
2 answers:
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Answer:
Option C is correct.
Step-by-step explanation:
Given the expression:
Using properties of summation:
Using properties of summation in the given expression we have;
=
=
Therefore, the following given expression uses the properties of summation to represents is,
We have a question on motion with the elements of distance, time taken and speed.
This question in particular is asking us for distance per unit time (in this case, hours).
We are required to find out how much distnace is covered in on hour and our approach will be as follows:
This right here just tells us that 4 hours, Madeline covered 180 miles and since her rate was constant (equal distances in equal times), then she also covered 45 miles in an hour.
Now we plot our number line.
