20% because the 15-12=3 and then you cross multiply 3 and 100 and then you divide by 15. Which is 20.
3. x
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15 100
Answer:
a) 7 members,
b) 3.
c) 4.
Step-by-step explanation:
I hope the following will help you understand what this diagram means:-
The 4 people in the area overlapped by the Music and Spanish areas are the people who are in both clubs.
Obaid and Abdulraheem are in the Music Club only.
The number of members in the Music Club is these 2 plus the 4 in the overlap area, so there are 6 members in the Music Club.
Solve for x by simplifying both sides of the equation, than isolating the variable.
x ≤ 8/3 or x ≥ 8
Answer: x=8
How: 41 the triangles are mirrored, so they have the same angles. You are trying to find the bottom angle of the top triangle, which is the same as the top angle of the bottom triangle since they are mirrored. So, (5x+1) is equal to 41. 41-1 =40. 40/5=8. Boom.
12 + n
if you substitute n for any whole number and simplify. you will find that 12+n does not equal any others. for example, i used 6 in place of n and all equations gives you 10 except 12+n
hope this helps!