(1/5)*160 = 32.
Then 32 is a good statisct to approximate the result. Of course, always there is an error associated with the measure, which should be approximated by the standard deviation.
To solve this we'll put the question in this format: x% of y things = z things
We have the percent so we'll put in 60 for x.
Now the total number of balls will be considered y since we have the number of red balls but not blue ones. so we end up having..
60% of y balls = 720 balls
Of is another word for multiplication, therefore:
60/100*y=720
Solve for y
y=1200
So we have 1200 balls
The place value is ones
rounded number is 3
Answer: 12 21
Step-by-step explanation:
Quadrilateral with two opposite sides parallel