Answer: n=4 y=3
Step-by-step explanation:
3n - y = 9
2n + y = 11
n=4
3(4) - y = 9
12 - y = 9
y=3
Answer:
(-a-b,c)
Step-by-step explanation:
midpoint D : ((-2b-2a)/2 ;(2c+0) /2 )
(-2b-2a)/2 = 2(-b -a)/2 = -b-a
(2c+0) /2 =2c/2 = c
Answer: The man has 10$.
Step-by-step explanation:
We start with the number 60. He sells the goat for 70 dollars, and makes a 10 dollar profit. Then, he buys it for 80$, leaving him with 0. But then he sells it for 90$, making another profit of 10$.
1/7 I don't know if this is subtract or not but I subtracted
Answer:
50.4
Step-by-step explanation:
4.20x12
