Answer:
25 questions
Step-by-step explanation:
84%*x = 21
-simplify-
0.84 *x = 21
Divide both sides by 0.84 than...
you get x = 25
Answer:
perimeter =

Step-by-step explanation:
perimeter
- = 2 × pi × radius
- = diameter × pie ( 2 × radius )
- = 23 × pi
=

Answer:
x=-1/2
Step-by-step explanation:
Move -2x to the other side by adding 2x on both sides:
12x+8=2
Move 8 to the other side by subtracting by 8 on both sides:
12x=-6
Divide by 12 on both sides:
x=-1/2
Hope this helps!
10 trees / 2 hours = 5 trees per hour
150 trees / 5 per hour = 30 hours
The correct ratio is 75:6