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Statistics and Probability Videos 63 videos

Using Conversion Factors to Solve for Density in Moles
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A mole is a unit used in chemistry to measure atoms, molecules, electrons, and other particles in a given amount of substance. We know that the mol...

SAT Math: Solving for an Unknown Variable Using Proportions
7 Views

Hydrostatic pressure is the force exerted by liquid upon an object. It is measured in pounds per square inch (psi) and increases proportionally wit...

SAT Math: Applying Conversions to Hot Air Balloon Heights
7 Views

A hot air balloon is rising from the ground at a rate of 0.6 meters per second. Approximately how long, in minutes, will it take for the hot air ba...

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SAT Math: Recognizing the Proportion of Magazines Sold in a Week 3 Views


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The table above shows the number of sales for the past three weeks of a local book store's products. What proportion of week 2 sales were magazines?

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