Question

2 + 1.25f =10-2.75f​

Answer 1

2

Explanation:

Khan Academy and lemme explain.

The range has to be within 1-5, if its over, we know we won't have to get the wrong answer. For me, I honestly guessed the number 3, but then I had to put in each number in the equation. 2 was the solution, because they ended up the same.

2 + (1.25 * 2)

2 + 2.5 = 4.5

10 - (2.75 * 2)

10 - 5.5 = 4.5

4.5 = 4.5

Therefore the answer is 2.

Answer 2

f = 2

Explanation:

2 + 1.25f =10-2.75f

Add 2.75f to each side

2 + 1.25f+2.75f =10-2.75f+2.75f

2+ 4f = 10

Subtract 2 from each side

2+4f-2 = 10-2

4f = 8

Divide each side by 4

4f/4 = 8/4

f = 2