Jamie and Terry were given the following problem to solve. ½ (10x +25y +4.2z) Their work is shown below. Terry claimed that Jamie was wrong; however, Jamie claimed that Terry was wrong.

Jamie Terry

½ (10x +25y +4.2z) ½ (10x +25y +4.2z)

= 5 + 25y +4.2z = 5x + 12.5y + 2.1z

Who is correct? Justify your answer by describing the error(s).

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

w'x is 0.

hope it

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.