21 tens = 21 x 10 = 210
210/4 = 52.5
52.5 is your answer
hope this helps
The mean to your question is -1. What you do is: 1) add all numbers together. 2) divide the sum by the amount of numbers in the question which is 5. 3) you get -1 as your mean. Hope this helps!
(-1, -5)
x-axis is to flip the y - coordinates
y-axis is to flip the x - coordinates
Answer:
55
Step-by-step explanation:
m angle A and m angle C are equal sine two of those sides are equal. You would do 3x + 40 = x +50
You subtract x, leaving it to be 2x + 40 = 50
Subtract the 40, leaving it be 2x = 10
Divide both sides by 2, which leaves x = 5
and then you would do 3(5) + 40, which is 55
Answer:
23.5 weeks.
Step-by-step explanation:
470/20 is 23.5
