Respuesta :

Answer:

6 cakes an hour

Step-by-step explanation:

4 1/2=4.50

3/4= 0.75

4.50*0.75=6

Cake frosted by Bob in 1hour is equals to 6cakes.

What is unitary method?

"Unitary method is a way of finding the value of one unit from the value of multiple units and vice-versa."

According to the question,

Number of cakes frosted by Bob in (3 /4) of an hours = [tex]4\frac{1}{2}[/tex] cakes

                                                                                        = 9 / 2 cakes

Apply Unitary method we get,

Number of cakes in 1hour = ( 9 / 2) × (3 / 4)

                                           = 6 cakes

Hence, cake frosted by Bob in 1hour is equals to 6cakes.

Learn more about Unitary method here

https://brainly.com/question/21648365

#SPJ2