The answer is B since he bought 4 in all it is x+y =4 . x=dvd y= blue ray discs .
so 2x + 5y =11
2x since dvds are $2
5y since blue ray discs are $5
11 since that’s the total
Answer:
x=7 so there is one solution
Step-by-step explanation:
5x-(7x-1)=-3x+8
Distribute the minus sign
5x -7x +1 = -3x+8
Combine like terms
-2x +1 = -3x+8
Add 3x to each side
-2x+3x+1 = -3x+3x+8
x+1 = 8
Subtract 1 from each side
x+1-1=8-1
x=7
Answer:
See Below
Step-by-step explanation:
You want to find AB.
They give the equation for AB, BC, and AC
AC - BC = AB
substitute the equations
(30) - (8x + 3) = 6x + 8
30 - 8x - 3 = 6x + 8
27 - 8x = 6x + 8
+8x +8x
27 = 14x + 8
-8 -8
19 = 14x
19/14 = 14x/14
1.3571428 = x
0.1 = tenth
1.4 = x
Substitute x into the equation for AB
6(1.4) + 8
16.4
Answer:
x=-35
Step-by-step explanation:
