Question

Which statement is true about the parts of this expression?

7.5y-z/9+50+2y
he constant is 7.5.
The coefficients are 7.5 and -9
The variables are x and y.
the like terms are 7.5y and 2y

Answer 1

First, False b/c 7.5 is not the constant because it multiplies by y ==> 7.5 is a coefficient
Second, False because -z/9, you can understand it as $\frac{-1}{9}z$. So, 7.5 and -1/9 are the coefficient, not 7.5 and -9.
Third, False, because z and y suppose to be the variable, not x and y variable.
Last, True because they both have the term y multiplies by a coefficient.

 

Answer 2

Answer:

The answer is, the like terms are 7.5y and 2y.

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