Answer:
Step-by-step explanation:
x =7
3x-1/9y=18
Add 1/9 y to each side
3x-1/9y + 1/9 y=18+ 1/9 y
3x = 18 + 1/9 y
Divide by 3
3x/3 = 18/3 + 1/9y *1/3
x = 6 + 1/27 y
Let y = 27
x= 6+ 1/27 * 27
x = 6+1
x = 7
A 50% increase followed by a 33/1/3% decrease. = ? (1 + 0.5)*(1 - 0.3333333) = 1.5 * 0.666667 = 1. Result is same as original.
mean=9
median=9
range=16
85 dollars
They are both the exact same
x = 27
y = 29
