Question

Ted added parentheses to this expression so that it's value is greater than 75. Where did Ted add the parentheses? 10+9x3-1x2

Answer 1

He added the parenthesis to (10+9)

Explanation:

The goal here is to find a part of this expression where we can add parentesis so that the value of the equation would be greater than 75

10+9x3-1x2

When we add parentesis to (10+9), we have:

(10+9)x3-1x2

19x3-1x2

= 112

112 is greater than 75.

If we add the parentheses elsewhere like (9x3)

10+(9x3)-1x2

The value would be

10+37-1x2 = 72

And 72 is less than 75