There are 12000 pupils in a school. Find the ratio of the boys to the girls if the number of girl is 650

if the number of boys are x and number of girls are y ,

total number of pupils is ,

x + y = 1200

given number of girls are y = 650 ,

x + 650=1200

x = 1200-650

x = 550

Numbers boys are 550

Now the ratio of boys to girls are .

x/y = 550/650

x /y =550/ 650

x/y =11/13

The ratio of boys to the girls are = 11/13

Step-by-step explanation:

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)