Answer:
$532.03
Step-by-step explanation:
Ann: 4 cameras + 2 computers = $2868.32
Sister: 2 cameras + 5 computers = $3562.28
If the sister has bought 2 sets:
Sister: 4 cameras + 10 computers = 3562.28 x 2 = $7124.56
Comparing the two equations:
4 cameras + 2 computers = $2868.32
4 cameras + 10 computers = $7124.56
We can conclude that:
10 - 2 computers = 7124.56 - 2868.32
8 computers = $4256.24
If 8 computers = $4256.24
1 computer = $4256.24 ÷ 8 = $532.03
Set up the proportion, you get 20/30=x/150. You will need to be 100 dollars.
x=7.5
To solve this, cross multiply
3/4=x/10
4*x=3*10
4x=30
Divide by 4 on both sides
Hope this helps! :)
Option 4
3x(x+2)-4(x+2)
(3x-4)(x+2)
3x²+6x-4x-8
3x²+2x-8
Brainliest please
