Answer:
p + q ≥ 9 and 4p + 6q ≤ 55
(10,1)
Step-by-step explanation:
Iced tea, x, costs $4 per gallon and lemonade, y, costs $6 per gallon.
Let us take p gallons of Iced tea and q gallons of lemonade.
Now, we need to purchase at least 9 gallons of drinks for a neighborhood picnic but have at most $55 to spend.
Therefore, the inequalities we can write from the above condition are
p + q ≥ 9 ....... (1)
and 4p + 6q ≤ 55 ........ (2)
Now both these two inequalities will be satisfied by the solution of (10,1) i.e. 10 gallons of iced tea and 1 gallon of lemonade. (Answer)