looks like it could be D but the picture is kind of blurry
(total mark/number of subjects)×100=63
(total mark+20+2)/(number of subjects)×100=65
(total mark+22)/number of subjects=0.65
let n be the total number of subjects
((0.63 of 100n)+22)÷(100n)=0.65
because he obtained only 63 percent from sum of all marks.(marks counted from 100)
(0.63×100n+22)÷(100n)=0.65
0.63+(22÷100n)=0.65
0.22÷n=0.65-0.63
0.22÷n=0.02
n=0.22/0.02
n=11
there were 11 subjects
Answer:
46-20=26
Explanation:
substract the largest from smallest
There are different kinds of angles. The Complete statement is that the ∠1 and ∠2 are Supplementary angles.
<h3>What are Supplementary angles?</h3>
- Supplementary angles are known to be a type of angles that add up to 180 degrees.
An example, angle 120° and angle 60° are supplementary angles because sum of 120° and 60° will give you 180°. Complementary angles are angles that sum up to 90 degrees.
Learn more about Supplementary angles from
brainly.com/question/12919120