Question

Mr. Civitello is building a wall in the building with bricks. He has 1 bag of mortar which costs $6 and a briek costs $2 each. The school gave hima budget of $200. How many bricks can he use to build the wall?

Answer 1

We will model the situation with an equation, first lets stablish the value that we need to find: We need to find the quantity of bricks that Mr. Civitello can buy with $200, lets call this value B, but the say to us that he will not only need the bricks, he also need a bag of mortar which costs $6, then we put this information in a equation

$2B+6=200\Rightarrow2B=194\Rightarrow B=\frac{194}{2}=97$

so he can use 97 bricks to build the wall.