Answer:
a=-18
Step-by-step explanation:
3 (a+7) = −33
3a+21=-33
3a=-54
-54/3=-18
Answer:
Step-by-step explanation:
To find the total surface area of the cylinder
We get
S.A=2πr^2+2πrh
S.A=2×3.142×4×4+2×3.142×4×10
S. A=100.544inches sq+251.36inches sq
S. A=351.904inches sq
Answer:
Step-by-step explanation:
the ordered pair solution to this system of equations is b. (-3,5)
Answer: 4 tickets for children under 12.
Step-by-step explanation:
A is the number of adults, S is the number of students and C is the number of children.
We have the equations:
1) A + S + C = 24.
2) A = 2*C
3) A*$15 + S*$10 + C*$5 = $260
So we have 3 equations and 3 variables.
First, we can replace A in both of the other equations.
1) 2*C + S + C = 24
S + 3*C = 24
and
3) (2*C)*$15 + S*$10 + C*$5 = $260
C*($30 + $5) + S*$10 = $260
C*$35 + S*$10 = $260
Now, we should isolate S in the first equation, and get:
1) S = 24 - 3*C
now we can replace it on the other equation:
3) C*$35 + S*$10 = $260
C*$35 + (24 - 3*C)*$10 = $260
C*($35 - $30) + $240 = $260
C*$5 = $20
C = 20/5 = 4
So we have 4 children.
What are you trying to figure out?
<span />