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- 0. Review of Algebra(0)
- 1. Equations & Inequalities(0)
- 2. Graphs of Equations(0)
- 3. Functions(0)
- 4. Polynomial Functions(0)
- 5. Rational Functions(0)
- 6. Exponential & Logarithmic Functions(0)
- 7. Systems of Equations & Matrices(0)
- 8. Conic Sections(0)
- 9. Sequences, Series, & Induction(0)
- 10. Combinatorics & Probability(0)
1. Equations & Inequalities
Linear Equations
1. Equations & Inequalities
Linear Equations: Study with Video Lessons, Practice Problems & Examples
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70PRACTICE PROBLEM
A new material was used on a wall of a room. This material is known to release toxic particles. The particles can cause sneezing if the concentrations in the air reach 900 micrograms per cubic meter (μg/m3). One square meter of this material could release the particles at a rate of 120 μg per hour. The room has 80 m2 of wall and 200 m3 of air. Calculate the time for concentrations to reach 900 μg/m3. Express your answer to the nearest tenth.
A new material was used on a wall of a room. This material is known to release toxic particles. The particles can cause sneezing if the concentrations in the air reach 900 micrograms per cubic meter (μg/m3). One square meter of this material could release the particles at a rate of 120 μg per hour. The room has 80 m2 of wall and 200 m3 of air. Calculate the time for concentrations to reach 900 μg/m3. Express your answer to the nearest tenth.