Let x be the number of key chains Mo must sell.
The story as an inequality:
1.50x ≥ 135
Solving the inequality:
Divide both sides of the inequality by 1.50 to isolate x:
x ≥ 135/1.50
x ≥ 90
Therefore, Mo must sell at least 90 key chains to meet the goal.
When this inequality is graphed, the limit will be a closed circle since x can be equal to 90.
When this inequality is graphed, the line will have an arrow pointing to the right since x must be greater than or equal to 90.
Mo is selling key chains as a fundraiser. If their goal is to raise at least $135, how many key chains must they
sell at $1.50 each to meet that goal?
● Write the story as an inequality.
● Solve the inequality, showing all steps.
● When this inequality is graphed will the limit be an open or closed circle?
● When this inequality is graphed will the line have an arrow pointing to the right or to the left?
1 answer