Answer:
3
Step-by-step explanation:
np have a good day!
Answer:
11/3
Step-by-step explanation:
3(-2/3)²-2(-2/3)+1
=3(4/9)+(4/3)+1
=4/3+4/3+1
=8/3+1
=11/3
Answer:
<em>$30 </em>
Step-by-step explanation:
Add each month's earnings, then divide them by ow many months.
29+35+26=90
90/3 = 30
Answer = Thirty dollars .
Answer:
It will take <u>3 hours</u> for 5 examiners to mark 80 papers.
Step-by-step explanation:
Given:
Time taken by an examiner to mark 80 exam papers = 15 hours
To find time taken by 5 examiners to mark 80 exam papers.
Solution:
Applying unitary method.
One examiner takes 15 hours to mark 80 exam papers
So, in one hour he can mark = papers
In hour 5 examiners can mark = papers
So, we know 5 examiners can mark papers in 1 hours.
So, to mark 1 paper they will take = = of a paper
Thus, to mark 80 papers they will take = hours.
Thus, it will take 3 hours for 5 examiners to mark 80 papers.