Question

HELPPP!!! And explain please.

Answer 1

After correcting error of Mia and solving the expression
`0.38 * 3 /(-1/20)*5/(-8)` we get 14.25

Explanation:

The given expression is:
`0.38 * 3 /(-1/20)*5/(-8)`

First I solve the expression, and then will point the error

`0.38 * 3 /(-1/20)*5/(-8)\\Converting \ / \ sign \ into \ * the \ term \ is \ inverted\\=0.38 * 3 *(-20)*5*(-1/8)\\=0.38* 3 *-20*5*-1/8\\=1.14 *-20*5*-1/8\\=-22.8*5*-1/8\\=-114*-1/8\\=(-114)/(-8)\\=14.25`

So, the mistake Mia did was when she inverted division sign into multiplication, she didn't invert the term next to division sign.

The step she did was:
`0.38 * 5 *(1/20)*3*(-8)`

While the correct step was:
`0.38 * 3 *(-20)*5*(-1/8)`

After correcting error of Mia and solving the expression
`0.38 * 3 /(-1/20)*5/(-8)` we get 14.25