Answer:
x = 2
y = -5
Step-by-step explanation:
2x - y = 9
y = x - 7
2x - y = 9
2x - (x - 7) = 9
2x - x + 7 = 9
x + 7 = 9
x = 2
y = x - 7
y = 2 - 7
y = -5
Answer:
8/3
Step-by-step explanation:
8 and 3 pieces
8 divided by 3= 8 times 1/3 which is equal to 8/3
Answer: 3.165 cm
Step-by-step explanation:
3 pairs=6 earrings
P=(a+2b)6
a=2cm
50/6=2+2b
8.33-2=2b
6.33=2b
b=3.165 cm
D.
Step-by-step explanation:
because cos0 = b/h
so cos0 = 8/15