Answer:
The answer is 30
Step-by-step explanation:
If you were to do 50% of 30, it would be 15 students that are girls. There's 18 students that are girls though, so the extra 10% would make 18 students in the class girls. The remaining 40% would be 12 boys. So basically you're taking 10% from one side and putting it in the other because 50% of 30 is 15 (well this is at least how I would do it, I don't know how others would do it though)
Apologies for the bad handwriting.
Answer:
y=-1/5x-9/5
Step-by-step explanation:
y=-5x-9
x=-5y-9
-5y=x+9
y=-1/5x+9/-5
y=-1/5x-9/5
Answer:
406452
Step-by-step explanation:
Set up a proportion
9.3/37800=100/x
Answer:
19 (using "3.14" as pi)
18.99036781...(using pi button)
Step-by-step explanation:
Formula: C=dπ
so, (59.66)=dπ
you would divide circumference (C) by pi which will get you the answers above :)
hope this helped
