Answer:
84 days
Step-by-step explanation:
If you can finish 1 class in 2 days then that can be expressed as:
1C = 2D
C = 2D
How many days would it take to finish 42 classes? Multiply both sides by 42:
42C = 2D * 42
42C = 84D
Therefore, it will take 84 days to finish 42 classes.
Answer:
10% is equivalent to the unit fraction 23
To find 10% of 230, multiply 230 by 0.10
10% of 230 is 23
Think about it, if 100% of 230 is 230, and 10% is 23, you can multiply 23 x 100 to get 230. I took a while to answer, but I hope my explanation helps.
Given:
estimate = 140
actual = 152
Percent of error = |(estimate - actual)/actual| * 100%
% of error = |140 - 152| / 152 * 100%
= |-12|/152 * 100%
= 0.0789 x 100%
% of error = 7.89% rounded to the nearest tenth 7.9%
The absolute value of a number will never be negative because absolute value is the distance from zero, so it will always be positive. For example, you can't be -6 away from 0, you are 6 away from 0.
