Mr. Spears was purchasing supplies for his math classroom. He had $25 to spend. Mechanical pencils and erasers come in bundles of 10. Each eraser costs $0.50. Fill in the missing place in the equation to compute the cost of each mechanical pencil.

Question

Mr. Spears was purchasing supplies for his math classroom. He had $25 to spend. Mechanical pencils and erasers come in bundles of 10. Each eraser costs $0.50. Fill in the missing place in the equation to compute the cost of each mechanical pencil.

fill in the blank : __

__ (x) + 0.50) = 25

Answer 1

The cost of each mechanical pencil can be found by setting up the equation:

10x + 0.50 = 25

Simplifying the equation, we get:
10x = 25 - 0.50
10x = 24.50

Now we can solve for x by dividing both sides of the equation by 10:
x = 24.50 ÷ 10

Thus, the missing value we need to fill in the blank is:
x = 2.45