Question

mrs. moran melted some broken crayons and used the wax to make a multicolored crayon. she melted 20 grams of blue crayons, 10 grams of green crayons, and some teal crayons. she poured the liquid wax into a mold and covered it. a few hours later, mrs. moran uncovered her crayon mold and saw that there had been a change. in the mold, there was a 40 - gram multicolored crayon. complete the bar graph to show the mass of the teal crayons. masses before and after the change (with a bar graph showing blue crayons at 20 grams, green crayons at 10 grams, multicolored crayon at 40 grams, and teal crayons to be completed)

Explanation:

Step1: Find total mass before

Let \( t \) be mass of teal crayons. Total before: \( 20 + 10 + t \).

Step2: Set equal to after

After mass is 40g. So \( 20 + 10 + t = 40 \).

Step3: Solve for \( t \)

Simplify: \( 30 + t = 40 \). Subtract 30: \( t = 10 \)g.

Step4: Draw teal bar

In the bar graph, the teal crayons bar should reach 10 grams (same as green, since \( t = 10 \)).

Answer:

The mass of teal crayons is 10 grams, so the bar for teal crayons should be drawn to the 10 - gram mark on the graph.