Question

Evaluate the expression when $x=3,y=4,\text{and}z=5$.

localid="1648793954055" $0.25y+x$.

Short answer

The value of expression is4.

Step-by-step solution

Step-1 – Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

• First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
• Evaluate the exponents.
• Perform Multiplication and division from left to right.
• Perform addition and subtraction from left to right.

Step-2 – Substitute the values

To evaluate the expression$0.25y+x$, substitute 3 for x and 4 for y, and simplify further using the order of operations as shown below,

$\begin{array}{c}0.25y+x=0.25\left(4\right)+3\\ =1+3\end{array}$

Step-3 – Add the numbers

To simplify further, add the resulting numbers to get

$\begin{array}{c}0.25y+x=0.25\left(4\right)+3\\ =1+3\\ =4\end{array}$

So, the value of the expression is 4.