Let x=gallons of 80% solution to be mixed
x+80=gallons go final 70% mixture
..
80%*x+30%*80=70%*(x+80)
.8x+24=.7x+56
.1x=32
x=320
gallons of 80% solution to be mixed=320
use this method when you do? - 14a + 200b + 16h = 1712
12 tables seat 4 people = 48 seats
28 tables seat 2 people= 56
therefore there are 104 seats
you will save 6 dollars If you buy 2 packages, instead if 6 individual pairs.
Answer:
b
Step-by-step explanation: