The decimal equivalent of 1/4 is 0.25.
Answer:
0.4
Step-by-step explanation:
If the ratio of boys to girls in a class is 2:3, then
- there are 2x boys;
- there are 3x girls.
If there are 18 girls in the class, then

Thus, there are
boys;
girls;
students in total.
The probability of a boy being in the class is

4/x³ - (2x-1)/3x
= (4*3) - (2x-1)(x²) / 3x³
= (12 - 2x³ - x²) / 3x³
= -2x³ -x² + 12 / 3x³
The answer is C.
Hope it helps!
18-8=10
10*2.2=22
his dog is 22 lbs above the typical weight
12^4 which is equal to 12 times itself 4 times