It's one of the ways to count it:
3/4 (n + 3) = 9
3/4n + 3/4 * 3 = 9
3/4n + 9/4 = 9
3/4n + 2 1/4 = 9 / - 2 1/4 (both sides)
3/4n = 6 3/4 / : 3/4 (both sides)
n = 9
Answer:
-0.167
Step-by-step explanation:
you can literally put this into your calculator :-)
Answer:
55 degrees
Step-by-step explanation:
To find the measure of the angle, use the inverse sine function on your calculator.
So the angle is equal to 
. This is equal to 55 degrees.
30 minutes because you would have to wait until one machine finishes
Answer: x=5
Step-by-step explanation:
5 x 5 = 25 - 7 = 18
so x=5
