EASIEST QUESTIONS IN THE WORLD
100 POINTS

Focus on question 14 and 16
Topic: Multiplying and dividing fractions

14  1/5

16.  1330 km

Step-by-step explanation:

 16.  The driving distance is 570 km from W to R

The driving distance from W to C is 2 1/3 times W to R

2 1/3 * 570

Change to an improper fraction

7/3 * 570

1330

The driving distance is 1330 km

14.  3/5ths are girls

1/3 of the girls walk

3/5 * 1/3 = 1/5

1/5 of the class is girls who walk

14. 1/5

16. 1330 km

Step-by-step explanation:

14. 1/5

P(girl) = 3/5. This information is clear.

P(walk | girl) = 1/3. The | sign means "given;" given that the person is a girl, we know that there is a 1/3 chance she walks to school.

This question wants to know what proportion of the class is both a girl and walks to school; because of the use of the word and, we know this is the intersection of two events, symbolized ⋂.

The formula for intersection is P(A ⋂ B) = P(A) * P(A|B).

P(girl ⋂ walk) = P(girl) * P(walk | girl)

                      = 3/5 * 1/3 = 3/15 = 1/5

16. 1330 km

So let's represent these with variables.

From Winnipeg to Regina is 570 km, so WR = 570.

From Winnipeg to Calgary is 2 1/3 times WR, so WC = 2 1/3 * WR.

We can just use substitution to combine these two equations.

WC = 2 1/3 * WR

WC = 2 1/3 * 570 = 1330 km

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

a

explanation: