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. (1 point)

Let the cost of each mechanical pencil be $x.

Since each eraser costs $0.50, and there are 10 erasers in a bundle, the cost of each bundle of erasers is $0.50 * 10 = $5.

Mr. Spears had $25 to spend, so he has 25 - 5 = $<<25-5=20>>20 left to spend on mechanical pencils.

Therefore, the cost of each mechanical pencil is $20 / (10 pencils) = $<<20/10=2>>2.

The missing place in the equation to compute the cost of each mechanical pencil is x = 2.