194k views
5 votes
Chris is babysitting to earn money for a new jacket that costs $100. He has saved up $40 so far. Which inequality represents the amount of money, m, he still needs to save?

2 Answers

5 votes

Answer:

60 dollars chris needs.

Explanation:

100 minus 40

User Flatlyn
by
7.7k points
5 votes

Explanation:

The amount of KNO3 that will precipitate out of a saturated solution upon cooling depends on the solubility of KNO3 at the two different temperatures. The solubility of a substance in a solvent is temperature-dependent, meaning that the solubility of a substance may increase or decrease with changes in temperature.

To determine the amount of KNO3 that will precipitate, we need to know the solubility of KNO3 at 50°C and 20°C. This information is usually available in a solubility table or from experimental data. If we know the solubility of KNO3 at 50°C and 20°C, we can calculate the amount of KNO3 that will precipitate by comparing the amount of KNO3 in the saturated solution at 50°C with the maximum amount that can be dissolved at 20°C.

Without knowing the specific solubility values, it is not possible to accurately determine the amount of KNO3 that will precipitate upon cooling.

User Bubu
by
8.2k points

No related questions found