Answer:
x = 40
Step-by-step explanation:
.80x + 30 = 1.20x + 14
<u>-.80x = -.80x </u>
30 = .4x + 14
<u> -14 = -14</u>
16 = .4x
16/.4 = .4/.4x
40 = x
Answer:ask google or the wander would be 1.2
Step-by-step explanation:
Do elimination
2x + y = 3
x - y = 3
Add these
3x = 6
X = 2
Plug in 2 for x
4(2) + 2y = 6
8 + 2y = 6
2y = -2
X = 2, y = -1
3/4 = x / 36....3 purple to 4 yellow = x purple to 36 yellow
cross multiply
4x = 108
x = 108/4
x = 27....there are 27 purple marbles
