The ratio of boys to girls in a class is 4:5 What fraction of the class are boys?
What fraction of the class are girls?

4/9 for boys and 5/9 for girls

explanation:

there are 4 boys and 5 girls

so there are nine in total

if there are four boys and 9 in total then the fraction would be 4/9

and if there are 5 girls and 9 in total then the fraction would be 5/9

hope this helps and it plays Mark brainliest :D

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.

0 and 5 minutes

step-by-step explanation:

given that one morning eight buses arrive late by the number of minutes given below:

0 8 2 6 9 2 0 7 8

write these in ascending order

0   0 2 6 7 8 8 9

in the afternoon two more buses arrive at the bus stop say by x and y minutes late.

total number of buses = 10

median = average of 4th and 5th after arranging in ascending order

since 4th entry is 6, the values of x and y should be below 6

also given 0 is the mode so either x or y or both should be 0 because then only 0 gets the maximum frequency and hence mode

thus we have

0 0 0 2 6 7 8 8 9 and another unknown entry which is below 6.

since median is 3.5, we have the unknown entry to be 5 only because then only median =( 2+5)/2

thus the after noon buses were late by 0 and 5 minutes.