Well, plug in 3 to x, and -4 to y.
5(3) + 2(-4) = 7
15 - 8 = 7
7=7
Yes, (3, -4) is a solution.
Answer:
see explanation
Step-by-step explanation:
The bar above the 3 indicates the 3 is being repeated, that is
0.13333....
We require to make 2 equations with the repeating 3 after the decimal point.
let x = 0.13333... , then multiply both sides by 10 then 100
10x = 1.3333 ← equation with repeating 3 after the decimal point
100x = 13.3333 ← second equation with repeated 3 after the decimal point
Subtracting the equations eliminates the repeated 3, that is
100x - 10x = 13.333 - 1.333
90x = 12 ( divide both sides by 90 )
x =
← divide numerator/denominator by 6, hence
0.1333... = 
It has a ratio of 1:4, meaning for every x, you'd get 4 from your y
Answer:
4?
Step-by-step explanation: