Final answer:
The length of each tile Japhet is making is found by dividing the area of the tile by its width, resulting in a length of 5.6 cm.
Step-by-step explanation:
The question asks us to find the length of a rectangular tile given its area and width. The area of a rectangle can be found using the formula Area = length × width. Since we know the area (7 sq cm) and the width (1 1/4 cm or 1.25 cm), we can rearrange the formula to solve for the length: length = Area / width.
To find the length of each tile, we divide the area by the width:
7 sq cm / 1.25 cm = 5.6 cm. Therefore, the length of each tile is 5.6 cm, which corresponds to option a.