2. There are 40 pupils in a class. 65% of them are girls. How many girls are there in the class?

a. What is asked?

- The many of girls are there in the class.

b. What are the given facts?

-  40 pupils

- 65% of them are girls

c. What is the process needed?

- Multiplication

d. What is the number sentence?

- 65% of 40 = 40*.65 = N

e. What is the answer?

- = 26

Answer:

24

40 pupils/5 parts (denominator) = 8 each part of 5 is 8. 2/5 are boys that means 2*8 are boys. 16 are boys. You could say 3* 8 are girls = 24 or you could have simply calculated the girls first. You know that 2/5 are boys so 5–2 = 3. We know to do this because 5/5 = 1 or 100%. You subtracted what you already know aren’t girls to determine 3/5 are girls. 3*8 are girls. 24 girls.

5/5= 1

2/5 are boys

5/5–2/5= 3/5 are girls

40 pupils

40/5 = 8 each part of the 5 is equal to 8.

3 (numerator for ratio of class which are girls) * 8 = 24

Step-by-step explanation:

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