Question

1. a school had a fundraiser to help raise money for international disaster relief. the table below shows the amounts raised through different activities. display the information on a circle graph.

school fundraising for international disaster relief

Explanation:

Step1: Calculate total amount raised

$$\begin{align*} \text{Total}&=750 + 325+375 + 150+100\\ &=(750+375)+(325 + 150+100)\\ &=1125+575\\ &=1700 \end{align*}$$

Step2: Calculate percentage for each category

• Parental donations: $\frac{750}{1700}\times100\%\approx44.12\%$
• Chocolate bar sales: $\frac{325}{1700}\times100\%\approx19.12\%$
• Hot lunches: $\frac{375}{1700}\times100\%\approx22.06\%$
• Concert proceeds: $\frac{150}{1700}\times100\%\approx8.82\%$
• Classroom donations: $\frac{100}{1700}\times100\%\approx5.88\%$

Step3: Calculate central angles for each category (since a circle has \(360^{\circ}\))

• Parental donations: $0.4412\times360^{\circ}\approx158.83^{\circ}$
• Chocolate bar sales: $0.1912\times360^{\circ}\approx68.83^{\circ}$
• Hot lunches: $0.2206\times360^{\circ}\approx79.42^{\circ}$
• Concert proceeds: $0.0882\times360^{\circ}\approx31.75^{\circ}$
• Classroom donations: $0.0588\times360^{\circ}\approx21.17^{\circ}$

Step4: Draw the circle graph

• Use a protractor to measure and draw the central angles for each category. Label each sector with the corresponding fundraising activity and its percentage.

Answer:

Follow the above steps to draw the circle graph accurately.