Tony had a certain number of stamps that were each worth $0.15. He misplaced 7 stamps. He found that the total value of his stam
p collection was now $5.55. Write an equation to represent the value of his stamp collection in terms of the number of stamps, s, that he had originally, and find the value of s.
The <span>Pythagorean Theorem tells us that where c is the </span><span>hypotenuse and a and b are the other two sides. To solve for one of the shorter sides we need to rearrange:
We can then substitute known values, and solve: </span>
where c is the </span><span>hypotenuse and a and b are the other two sides. To solve for one of the shorter sides we need to rearrange:
