Proportional relationships (Full video)

Khan Academy

Supporting grades: 7

Description: Sal determines which ratios are proportionate to a ratio provided in a context. We're told that Mael mixes 15 milliliters of bleach with 3.75 liters of water to make a sanitizing solution for a daycare. Which of the following could be combinations of volumes of bleach and water for Mael's sanitizing solution? Remember, he mixes 15 milliliters of bleach for every 3.75 liters of water.

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