Do not copy any others will make brainleist again dont copy any one else part a: explain why x = 3 makes 4x − 1 ≤ 11 true but not 4x − 1 < 11. (5 points) part b: what value from the set {4, 5, 6, 7, 8} makes the equation 8x + 1 = 57 true? show your work. (5 points)

Part A: If 3 is equal to x, we can substitute it into the equation. The equation would look like this: 4(3)-1 ≤ 11

We can simplify the equation using multiplication: 12-1≤11

Now, we do subtraction: 11≤11

This is true because ≤ means less than or equal to. If we substituted ≤ for <, it would no longer be true because 11 is not less than 11.

Part B: We need to substitute every number in. I will go top to bottom until we determine our answer. 8*8=64, so it cannot be 8 because 64+1≠57

8*7=56. Now, we add 1 to 56 and we get this: 57=57

This is true because they are the same number, therefore equal.

The value "7" would make the equation true.

If you need any more help, feel free to let me know!

26?

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)