Question

down and reused by companies creating new materials.
trash is sent to a landfill.

organic material	paper recycling	container recycling	trash or garbage

|fruit peels
leftovers
coffee grounds and filter
tea bags|newspapers
paper - towel roll
cardboard box|plastic bottles
milk carton
yogurt container|plastic package
tin foil
bubble wrap|

total mass: 1.3 kg

total mass: 0.7 kg

total mass: 0.9 kg

total mass: 0.5 kg

complete the chart below using the information in the chart above.
|total mass of all waste:|
|percentage by mass of organic material:|
|percentage by mass of paper recycling:|
|percentage by mass of container recycling:|
|percentage by mass of trash:|

summary
in this example, the total percentage of waste material heading for the garbage can and landfill is 12%. this is pretty good. it still leaves room for improvement, but it is a start on

Explanation:

Step1: Calculate total mass of all waste

Add the masses of each waste - type: $1.3 + 0.7+0.9 + 0.5=3.4$ kg

Step2: Calculate percentage of organic material

Use the formula $\text{Percentage}=\frac{\text{Mass of organic material}}{\text{Total mass of all waste}}\times100\%$. So, $\frac{1.3}{3.4}\times100\%\approx38.24\%$

Step3: Calculate percentage of paper - recycling

Use the formula $\text{Percentage}=\frac{\text{Mass of paper recycling}}{\text{Total mass of all waste}}\times100\%$. So, $\frac{0.7}{3.4}\times100\%\approx20.59\%$

Step4: Calculate percentage of container - recycling

Use the formula $\text{Percentage}=\frac{\text{Mass of container recycling}}{\text{Total mass of all waste}}\times100\%$. So, $\frac{0.9}{3.4}\times100\%\approx26.47\%$

Step5: Calculate percentage of trash

Use the formula $\text{Percentage}=\frac{\text{Mass of trash}}{\text{Total mass of all waste}}\times100\%$. So, $\frac{0.5}{3.4}\times100\%\approx14.71\%$

Answer:

Description	Value
Percentage by mass of organic material	$38.24\%$
Percentage by mass of paper recycling	$20.59\%$
Percentage by mass of container recycling	$26.47\%$
Percentage by mass of trash	$14.71\%$