Answer:
Step-by-step explanation:
-k - ( -8k + 7)
negative sign is outside the parenthesis. so it should be multiplied with -8k and 7
-k - (-8k + 7) = -k - 8k * (-1) + 7*(-1)
= -1k + 8k - 7
Now -k and 8k are like terms. So, combine them.
= 7k - 7
Answer:
x +2y = 36
2x+3y =64
Step-by-step explanation:
x = price of a T-shirt
y = price of a puck
Adam buys a T-shirt and two souvenir pucks for $36.00
x +2y = 36
Luke spends $64.00 on two T-shirts and three pucks
64 = 2x+3y
Our system of equations is
x +2y = 36
2x+3y =64
(x,y)
if x repeats with a differnt y then it is not a function
A. none of them repeat, it's a function
B. none of them repeat, it's a function
both of them are functions
Rolling an 11:
n(A): 6&5, 5&6
n(A) = 2
Rolling a 5:
n(B): 1&4, 4&1, 3&2, 2&3
n(B) = 4
n(A) + n(B) = 4 + 2 = 6
