Q. What is the value of the expression below when y=7 and z=4 ?2y+5zAnswer:
Identify values and operation: Identify the values of y and z and the operation to be performed.We are given y=7 and z=4, and we need to calculate the value of the expression 2y+5z.
Substitute values into expression: Substitute the values of y and z into the expression.Substitute y=7 and z=4 into the expression to get 2(7)+5(4).
Perform multiplication: Perform the multiplication.Calculate the products: 2(7)=14 and 5(4)=20.
Add multiplication results: Add the results of the multiplication.Add the two products together: 14+20.
Calculate final value: Calculate the final value of the expression.The sum of 14 and 20 is 34.
More problems from Evaluate multi-variable expressions