Respuesta :
Step 2 was his error.
The following problem is solved by Alan:
[tex]\frac{x}{200} =\frac{8}{25}[/tex]
In solving for x, you have to cross multiply between the numbers.
In that case, step 2 would look like this:
(25)(x) = (8)(200)
NOT THIS:
(8)(x) = (25)(200)
Now continue all the way.
25x = 1600
x = 1600 ÷ 25
x = 64
Answer:
The second step.
Step-by-step explanation:
Alan didnt cross multiply. He multiplied straight across.
The correct way is:
x over 200 = 8 over 25
200(8) = 1600
25(x) = 25x
1600/25 = 64
25x/25 = x
So, the correct answer is x = 64
Hope this helps
-Amelia