<h3>
Answer: 127</h3>
=================================================
Explanation:
The phrasing "2/3 of 4/5 of his 2nd exam on his 3rd test" is a bit clunky in my opinion. It seems more complicated than it has to be.
The student got 80 on the second exam. 4/5 of this is (4/5)*80 = 0.8*80 = 64. Then we take 2/3 of this to get (2/3)*64 = 42.667 approximately. If we assume only whole number scores are given, then this would round to 43.
Let x be the score on the fourth exam. Since 5 points of extra credit are given, the student actually got x+5 points on this exam.
So we have these scores
- first exam = 70
- second exam = 80
- third exam = 43
- fourth exam = x+5
Adding up these scores and dividing by 4 will get us the average
(sum of scores)/(number of scores) = average
(70+80+43+x+5)/4 = 80
(x+198)/4 = 80
x+198 = 4*80
x+198 = 320
x = 320 - 198
x = 122
So the student got a score of x+5 = 122+5 = 127 on the fourth exam.
Answer:
768 in²
Step-by-step explanation:
Surface Area = 2(15*14) + 2(15*6) + 2(14*6)
Surface Area = 2(210 + 90 + 84)
Surface Area = 2(384)
Surface Area = 768
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer: 2592
Step-by-step explanation:
Product means to multiple.
Since product means to multiple, we multiple 54 x 48 to get 2592
Answer:
x = 9
Step-by-step explanation:
move the 3 to the 12 and change it from pos to neg so 12-3=9
Answer:
The table in blue
Step-by-step explanation: