Question

tickets to the spring festival are being sold online. the ticket price is $10 per person. the expression 10y + 2 represents the total cost for y tickets, including a $2 service fee. you can evaluate the expression 10y + 2 by substituting a number for y. mr. mathes purchases 4 tickets for his family. find the value of the expression when y = 4. 10y + 2 = 10(?) + 2 substitute 4 for y.

Explanation:

Step1: Identify substitution value

We know we need to substitute \( y = 4 \) into the expression \( 10y + 2 \). So in the term \( 10(\quad) \), we put the value of \( y \), which is 4.
<Expression: \( 10y + 2 = 10(4)+ 2 \) (after substituting \( y = 4 \))>

Step2: (Optional, but to find total cost) Calculate the value

First, calculate \( 10\times4 = 40 \), then add 2: \( 40 + 2 = 42 \). But the question here is just about the substitution in the box, so the value to put in the box is 4.

Answer:

4