9 more than the product of the profit, p, and 8

Question

write each phrase as an mathematical expression 

Answer 1

Product is the result of multiplication, so p x 8, which we call 8p.

 

Nine more than that would be 8p + 9.

 

What can you do from here? Either be given a value of x to plug in...

 

If p = 6, 8(6) + 9 = 57

 

Or be told that 8p + 9 has a value, so find p.

 

8p + 9 = 81

8p + 9 - 9 = 81 - 9

8p = 72

8p/8 = 72/8

p = 9

 

Hope this helps.