A class has 30 students,17 have taken science,19 have taken arts and two students have enrolled in any course. How many students
enrolled in both science and Arts ?
1 answer:
Let x = number of students enrolled in both Science and Arts.
Then the number of students taking Science only is 17 – x and,
the number of students taking Arts only is 19 – x.
We know that
Total # of students in class = # Science only + # Arts only + Both Arts & Sciences + # Any
= (17 – x) + (19 – x) + x + 2
= 38 + x
This should be equal to 30 as given. So,
38 – x = 30
Subtract 38 from both sides:
–x = –8
So x = 8.
Answer: 8
You might be interested in
Answer:
perimeter of rectangles = 2 ( l + b)
34 = 2 ( x + 2 + 3x - 4 )
34 = 2 ( 4x - 2 )
34 = 8x - 4
38 = 8 x
38/ 8 = x
thus , x = 4.75 inches
Answer:
5.7082,5.009,5.09,5.7
Step-by-step explanation:
Answer:
Each side is 4.5 cm
Step-by-step explanation:
To find the perimeter of a square you add all the sides.
But to find the side length you do the opposite. Which is the equation above.
Hope this helps : )
Answer: You are right it is 6
Step-by-step Explanation
Every circle counts as one so it is 6
BTW how do you make the picture appear
The answer is D. The relative minimum and maximums are where they kind of curve and come back up or down. So that is 64 and -36.
