Answer:
x = -30
y = -20
Step-by-step explanation:
x - 12y = 210..... (I)
x - 6y = 90..... (II)
Subtract equation (II) from (I)
- 12y - (-6y) = 210 - 90
-12y + 6y = 120
-6y = 120
Divide through by -6y
Therefore, y = -20
Substitute y = -20 in equation (II)
x -6 (-20) = 90
x + 120 = 90
x = 90 - 120
x = -30
Hope that helped
3n - 4 = 2✓
n = 2
3×2 - 4 = 6 - 4 = 2 ✓
3n - 4 = 2
n = -2/3
-6/3 - 4 = -2 - 4 = -6 wrong
Answer:
33 yards
Step-by-step explanation:
To find the number of ribbons that she used to decorate the dresses can be gotten by subtracting the amount of ribbon left from the total amount of ribbon she had.
She bought 100 yards. She has 67 yards left.
Therefore, the amount of ribbon she used for the dresses is:
100 - 67 = 33 yards
