Exercise 1 Directions: Write a system of linear inequalities to model the given real-life situation.
Real-life Situation
System of linear inequalities
model
1. A calamansi juice (c) and a slice of buko pie (
b) cost at most P60. A slice of buko pie's price is
at most 5 times the price of a calamansi juice.
2. A group of tourists is planning a trip to Boracay
this December. At least 12 people must sign up for
the trip, or it will be cancelled. The number of boys
(x) in the group is at most twice the number of girls
0).
3. The daily allowance of Anne (a) is at most ten
more than twice the allowance of her sister,
Rowena (r). Together, they are given at most
Php100 a day.
4. A house (h) and lot (/together in a subdivision
cost at least Php 800 000.A house is more than
thrice the cost of a lot.​