18 students are 100%-37,5%-40%=22,5%
So we know that 18 students equal to 22.5. And we are looking for the anwser what 100% of students is.
SO:
x students - 100%
(22 + 1/2)x =18×100
(22 + 1/2) can be represented as just 25.5
-//- = 1800
we need to divide bot sides by 25.5
x = 1800 / 25.5
... x = 80
Answer:
the first one
Step-by-step explanation:
8x-6>=-9x+5x
12x>=6
x>=0.5
Answer:
Step-by-step explanation:
for the first one scale by 2 and the second one scale by 1/2 (the easiest ones)
sides would be 20,12,16 for the first one and 5,3,4 for the second one
1 keeps the tri the same size because your muti0lyong by one
Answer:
Slope = 4
Step-by-step explanation:
The slope of a linear equation can be calculated as;
m = y2-y1/x2-x1
What we have to do here is to select any two points ;
(x1,y1) = (3,8)
(x2,y2) = (6,20)
m = (20-8)/(6-3) = 12/3 = 4