Plug in 3 for x and solve for k.
(3)^2-3k+21=0
3k=9+21
3k=30
k=10
Answer:
8 sets of twenty sandwiches.
Step-by-step explanation:
first you find the answer to 3 x __ = __ lets make the answer 24. That makes the other blank 8. Now subtract 24 from 184 and you should get 160. Divide 160 by 20 and you'll get how many set the customer ordered of twenty sandwiches. Multiply by twenty and you will get the whole amount they ordered.
Answer:
the answer is 1. 794
Step-by-step explanation:
Y would equal one bc negative two plus three is one
