Question

kelsey mixed 100 grams of seawater with 400 grams of sand and used her mixture to build a sand castle. when kelsey was done building, her sand castle had a mass of 450 grams. some sand was stuck to her hands. complete the bar graph to show the mass of the sand on kelsey’s hands. masses before and after the change bar graph with mass (grams) on y - axis and categories seawater, sand (before), sand castle, sand on kelsey’s hands (after) on x - axis, with existing bars: seawater (100g), sand (400g), sand castle (450g)

Explanation:

Step1: Calculate total mass before

The total mass of seawater and sand before mixing is \(100 + 400 = 500\) grams.

Step2: Find mass of sand on hands

The mass of the sand castle is 450 grams. So the mass of sand on Kelsey's hands is \(500 - 450 = 50\) grams. So the bar for "sand on Kelsey's hands" should reach 50 grams on the y - axis.

Answer:

The bar for "sand on Kelsey's hands" should have a height corresponding to 50 grams (i.e., it should reach the 50 - gram mark on the vertical axis of the bar graph).