Answer:
a = 4 b = 5
Step-by-step explanation:
8a + 12b = 92......eqn 1
6a - 4b = 4......eqn 2
multiply eqn 2 by 3
18a - 12b = 12.....eqn 2
add eqn 1 and 2 to eliminate b
26a = 104
a = 4
put a = 4 into eqn 2
18(4) - 12b = 12
72 - 12b = 12
72 - 12 = 12b
60 = 12b
5 = b
Answer:
40 different arrangements of songs
Step-by-step explanation:
Hello,
Cube X: volume=x
Cube Y: volume=8x
Y has a volume 2^3 times of the X cube
So,
the side of the Y cube is twice the volume of the X cube.
The side of the X cube is half of the cube Y
Side of X cube=y/2
Let S represent William, and M represent Umaima.
S = 5M
S = M + 8
Since they are both values of S, they equal each other.
5M = M + 8
Subtract M from each side
4M = 8
Divide each side by 4
M = 4\2
Umaima is 2; therefore William is 10.
