If there are 50 quizzes and the student has taken 20 so far, that means there are 30 remaining quizzes. Now we need to find the overall percentage if the student scores 60% on 20 quizzes and 80% on 30 quizzes.
To do this, we need to figure out what percentage of 50 is 20.
or 40%
If 20 quizzes make up 40% of the total, then the remaining 30 quizzes make up 60%. Now we need to multiply the scores earned by the max possible points out of 100.
0.6(40) + 0.8(60) = 72
The answer is 72%.
0.27083333333 it would be this simplified which is 13/48
Answer:
8,192....this is the answer
Answer:
Mean- 70.8
Median- 70
Mode- 60
Step-by-step explanation:
Mean: 20+20+50+50+50+60+60+60+60+60+60+70+70+70+80+80+80+80+90+90+90+90+100+100+130= 1770
1770/ 25= 70.8
Median: cross off on each sides till you get to the middle number
Mode: 60 occurs the most frequent
Answer:
88°
Step-by-step explanation:
Angles B and D are supplementary, so the value of x is ...
x = 180° -116° = 64°
Then the measure of angle A is ...
(2x -40)° = (2·64 -40)° = 88°
The measure of angle A is 88°.