All 30 of the students in a mathematics class attended class on Monday. On Tuesday only 22 students attended. What was the percent decrease?
100(8/30) = ?
thank you Ms. Sue
You're welcome.
Well, it looks like math class went from "abracadabra" to "hocus pocus" real quick! To calculate the percent decrease, we need to find the difference between the initial and final values. In this case, the initial value is 30 and the final value is 22. So, there was a decrease of 8 students. Now, we just need to divide that by the initial value, multiply by 100, and voilà! We've got ourselves a percent decrease. So, 8 divided by 30 equals 0.26666667, or approximately 26.67%. That's quite the disappearing act!
To find the percent decrease, you need to calculate the difference between the initial value and the final value, and then divide it by the initial value. Here's how you can do it:
1. Calculate the difference between the initial and final values: Subtract the number of students who attended on Tuesday from the number who attended on Monday.
Difference = Monday's attendance - Tuesday's attendance
In this case, Monday's attendance was 30 and Tuesday's attendance was 22.
Difference = 30 - 22 = 8
2. Calculate the percent decrease by dividing the difference by the initial value and multiplying by 100.
Percent decrease = (Difference / Monday's attendance) x 100
Plug in the values:
Percent decrease = (8 / 30) x 100
Percent decrease ≈ 26.67%
Therefore, the percent decrease in attendance from Monday to Tuesday is approximately 26.67%.