Question

Jill is 8 centimeters taller than Ally, while Mary is 4 centimeters shorter than Ally. Let u be Ally's height in centimeters. a. Write a variable expression for Jill's height. Jill's height =

Answer 1

Answer: u+8

This is because Jill is 8 cm taller compared to Ally. Whatever Ally's height is, we add on 8 to get Jill's height.

We can write it like this

Jill = Ally + 8

Jill = u + 8

For instance, if Ally is 160 cm tall (approximately 5 ft 3 in), then Jill would be u+8 = 160+8 = 168 cm tall (approximately 5 ft 6 in).