The amounts spent on clothes by 40 boys and 40 girls in one month were recorded. The table shows information about the amounts spent by the boys.
Amount, x (E) Midpoint Number of boys
Osx<20
10
18
20 SX<40
30
9
The mean for the girls was £48.80
40 SX < 60
50
7
Estimate the mean for the girls as a
60 x 80
70
6
percentage of the mean for the boys.

77

step-by-step explanation:

28

step-by-step explanation:

because that's the answer

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).