Kayla has a 41% grade average. On an exam that is worth 20% of her grade she gets a 100%. What is her grade now?

The 41% she has now is 80% of her final grade, so

she already has 41(.8) or 32.8 %
For her final she get all of the available 20%

final grade = 32.8+20 or 52.8% probably rounded to 53 %

To calculate Kayla's grade after receiving a 100% on an exam worth 20% of her overall grade, you can follow these steps:

Step 1: Calculate her current grade average.
Since the 100% exam is worth 20% of her overall grade, the remaining 80% contributes to her average. To find her current grade average, we can multiply her current average by 80%.
41% current average * 80% remaining weight = 32.8

Step 2: Add the grade she received on the exam.
The 100% she got on the 20% exam adds directly to her average, so we add 100.
32.8 + 100 = 132.8

Her grade after receiving a 100% on the exam is 132.8%.