there are 37 people at a dinner party there are 15 dollar entrees and 18 dollar entrees and 606 dollars total are raised how many 15 dollar entrees were ordered

Question

I really need an answer to this please help me

 

Answer 1

Hi Justus,

 

Let the number of $15 entrees be x. Then, $18 entrees number will be 37-x.

 

15x + 18(37-x) = 606

15x + 666 - 18x = 606

-3x + 666 = 606

-3x = -60

x = 20

20 $15 entrees were ordered.