Question

How would I write this equation

Answer 1

Answer:

Let the number of brownies made by Rachel and Trish be R and T respectively.

R+T= 84 ---------(1)

R= 5(12)= 60

Substitute into (1):

60 + T = 84

T= 84-60

T= 24

Therefore, number of pans of brownies made by Trish

= 24÷12

=2

Alternatively,

Let the number of pans of brownies made by Trish be x.

Total number of pans of brownies= 84/12= 7

Since Rachel contributed 5 pans,

x+5=7

x= 7-5= 2

Thus, Trish made 2 pans of brownies.