Answer:
Step-by-step explanation:
How is 16 related to 2? We multiply 2 by 8, obtaining 16.
How is 8 related to 64? We multiply 8 by 8, obtaining 64.
So 2/8 is equivalent to 16/16.
Answer:
0.25
Step-by-step explanation:
1. Add up all of the students.
20+20+25+7+13+5+3+2+5=100
2. Make a ratio of that number and the number of all the students in Music/Drama
MUSIC/DRAMA: 7+13+5=25
3. Simplify
= 0.25
Answer:
x = 5
Step-by-step explanation:
You want to find x such that ...
x^2 +(x +1)^2 = 61
2x^2 +2x -60 = 0 . . . . . simplify, subtract 61
x^2 +x -30 = 0 . . . . . . . divide by 2
(x +6)(x -5) = 0 . . . . . . . . factor; solutions will make the factors be zero.
The relevant solution is x = 5.
900 divided by 3 is 300 so 300 students bring their lunch opposed to 600 students who do not.
