8-(r+9)-7 = 9
First, distribute the (-) sign! ^^
8-r-9-7=9
Calculate the numbers! ^^
-8-r = 9
Isolate the variable (r)! ^^
-r = 9+8
Solve! ^^
-r = 17
Move the sign! ^^
r = -17
^ this is your answer :)
Answer:
f=
−3x+141
19ix2
Step-by-step explanation:
Answer:
Answer below
Step-by-step explanation:
A) 34
B) 34
C) 32
D) 43
E) 5
F) 48
G)27.5
H) 40.5
I) 13
Answer:
Q1) D
Q2) C
Step-by-step explanation:
Q1)
y ∝ x
y = kx
Let x=-1,y=2
2 = k(-1)
k = -2
Q2)
directly (y=kx)
Let x=2,y=4
4 = k(2)
k = 2
y = 2x
inverse (y = k/x)
Let x=2,y = 4
4 = k/2
k = 8
xy = 8