Question
Using substitution, which number from the set {15, 25, 35, 55} makes the equation y+15=40 true?(1 point)
Responses
25
25
35
35
55
55
15
To solve the equation y + 15 = 40, we need to find the value of y that makes the equation true.
To do this, we can use substitution by replacing y with each number from the set {15, 25, 35, 55} and see which one satisfies the equation.
Let's try substituting each number:
1. Substitute y = 15:
15 + 15 = 30 (not equal to 40)
2. Substitute y = 25:
25 + 15 = 40 (equal to 40)
3. Substitute y = 35:
35 + 15 = 50 (not equal to 40)
4. Substitute y = 55:
55 + 15 = 70 (not equal to 40)
From this substitution, we see that the number 25 makes the equation y + 15 = 40 true.
The correct answer is: 25