Question

Ms. Velez will use both x gray bricks and y red bricks to build a wall around her garden. Gray bricks cost $0.45 each and red bricks cost $0.58 each. She can spend up to $200 on her project, and wants the number of red bricks to be less than half the number of gray bricks.
Select all inequalities that model this situation.
x≥0
0 0.45x+0.58y<200
x>0
0 0.45x+0.58y≤200
(More than one answer)

Answer 1

Let

x--------> the number of gray bricks

y--------> the number of red bricks

we know that

$y < \frac{x}{2}$ ------> inequality 1

$0.45x+0.58y \leq 200$ -----> inequality 2

therefore

the answer is

x > 0

0.45x+0.58y≤200