Constant of portionality for y=18.25x

18.25

Step-by-step explanation:

In the standard direct variation equation of y = kx, k is the constant of proportionality.

Since the equation is y = 18.25x, k is equal to 18.25.

So, the constant of proportionality is 18.25

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls