Answer:
1st page:
A. 28
B. 24
C. The answers were different because out of the 24 students, some played more than 1 sport
Step-by-step explanation:
I can’t help with 2nd page, Sorry!
Answer:
Step-by-step explanation:
Answer:
A. 19.5
Step-by-step explanation:
Diagonals of a rhombus intersect at right angles. Therefore the angle opposite to AD = 90°.
Thus:
90° + x + 3x + 12 = 180° (sum of ∆)
Add like terms
102 + 4x = 180
Subtract 102 from each side
4x = 180 - 102
4x = 78
Subdue both sides by 4
x = 19.5
Answer:
-1
Step-by-step explanation:
-9a<u>(-16+3)</u>=4a ; solve for whole numbers first.
-9a-(13)=4a ; A negative 16 plus a positive 3 is 13.
-9a-4a=13 ; Switch 13 and 4a to make it easier to solve.
-13a=13 ; Now divide each side by -13.
a=-1
Yeah, happened to me too. I just deleted and reinstalled the app which fixed it