frankie has an avg of 57% and he has 2 test left worth 5% each and 1 assigment worth 1% and 2 assigment both 2% how much would he need to bring his avg to 80?

say that all the test are out of 60 marks

As another person responded, you haven't presented enough information to answer this question.

It makes a huge difference whether the total marks (points) for the class is 600 or 6,000.

To find out how much Frankie would need to bring his average to 80%, we can set up an equation based on the given information. Let's break it down step by step:

1. Calculate the current weighted average:
Frankie's current average is 57%.

2. Determine the total weightage of tests and assignments:
Two tests worth 5% each = 2 * 5 = 10%
One assignment worth 1% = 1%
Two assignments worth 2% each = 2 * 2 = 4%
So, the total weightage of tests and assignments is 10% + 1% + 4% = 15%.

3. Calculate Frankie's average without the remaining assessments:
To calculate this, we need to subtract the weightage of the remaining assessments (15%) from the current average (57%).
Average without remaining assessments = 57% - 15% = 42%.

4. Determine how much Frankie needs to achieve an 80% average:
Let's assume Frankie gets a perfect score on the remaining tests and assignments.

To find out how much he needs to increase his average from 42% to 80%, we set up the following equation:
(42% + x%) / (1 + 0.05 + 0.05 + 0.01 + 0.02 + 0.02) = 80%
Here, x represents the additional percentage points Frankie needs to achieve an average of 80%.

5. Solve the equation for x:
(42% + x%) / 1.15 = 0.80
Multiply both sides by 1.15 to eliminate the denominator:
42% + x% = 0.80 * 1.15
42% + x% = 0.92
Subtract 42% from both sides to isolate x:
x% = 0.92 - 0.42
x% = 0.50

Therefore, Frankie would need to earn an additional 0.50% to bring his average to 80%.