Ok, so 11:9
11-9 = 2
which means that 124= 2:1
124/2 = 62
so 62:0
now 11 x 62= 682
9 x 62= 558
so the ratio is 682:558
now 682 + 558 = 1,240
There are 1,240 total students in the school. 682 boys and 558 girls
Answer:
Step-by-step explanation:
to convert degree to radians multiply with π/180
therefore -15° =-(15 ×π/180) = -π/12
Answer:
9/8 plus 5/6 = 20/24 + 27/24 = 47/24 = 1 23/24
Step-by-step explanation:
