Question

Why did I get this WRONG?

Answer 1

@jim_thompson5910

Answer 2

I'm curious as to how you got the 42?

Answer 3

sorry, I had 0.7(60-x) first I simply distributed hoping that would work

Answer 4

I honestly don't know. The last box is correct but the box just above that is incorrect. The second to last box leads directly to the last box. So there's a glitch in the system I'm guessing.

Answer 5

I feel the same, there must be some glitch or so.

Answer 6

btw, this integral equation
\[\Large \int_{0}^{30}(42-0.7x)dx = 945\]
is a true equation

Answer 7

so either they want it in a different form or there's a glitch