they all swore to tell the truth, the whole truth, and nothing but the truth. unfortunately only 4/5 did. if that 4/5 amounted to 128 people, how many took the truth pledge in total?
If 4/5 of the people equals 128, it means that each fraction represents 128 ÷ 4 = <<128/4=32>>32 people.
Since the fraction represents 4/5, the total number of people who took the truth pledge is 32 x 5 = <<32*5=160>>160. Answer: \boxed{160}.
To find the total number of people who took the truth pledge, we can set up a proportion. We know that 4/5 of the people swore to tell the truth, and this amounts to 128 people. Let's denote the total number of people who took the pledge as "x".
So we can set up the proportion:
4/5 = 128/x
To solve for x, we can cross-multiply:
4 * x = 5 * 128
Simplifying the equation:
4x = 640
Dividing both sides by 4:
x = 640/4
Evaluating the division:
x = 160
Therefore, the total number of people who took the truth pledge is 160.
To find the total number of people who took the truth pledge, you need to find the number of people represented by one-fifth of the total number.
Given that 4/5 of the people took the truth pledge, that means that 1/5 did not. We're told that 4/5 of the total number of people equals 128.
Let's assume that the total number of people is represented by "x". We can set up the following equation:
4/5 * x = 128
To solve for x, we can multiply both sides of the equation by 5/4:
(4/5 * x) * (5/4) = 128 * (5/4)
This simplifies to:
x = 160
Therefore, the total number of people who took the truth pledge is 160.