If you mean that the total number of questions is 70, then:
1. You need to figure out what 90% is of the total, 70.
2. Do this by multiplying 70 by 90% --> 70*(.9)
3. 90% of 70 is 63. The total number correct is 63.
You can check your work by figuring out what percentage 63 is of 70. 63 divided by 70 (63/70) is .9, or 90%.
First we should find the percent that this number of miles are currently at:
20n = 11
n = 11/20
n = 0.55
1 - 0.55 = 0.45
A 45% decrease
Answer:
isosceles triangle
Step-by-step explanation: an isosceles triangle has 2 congruent sides, and 2 congruent angles
I found the missing choices:
<span>the standard deviation
the margin of error
the variance
the population mean
</span>
<span>The absolute difference between either limit and the mean is an example of THE VARIANCE.
Variance is defined as the</span><span> average of the </span>squared<span> differences from the Mean. </span>
