Aunt Abby will bake the wedding cake - NSC Mathematical Literacy - Question 3 - 2018 - Paper 1
Question 3
Aunt Abby will bake the wedding cake. She will be using a recipe from a recipe book published in England.
NOTE:
• 1 kg = 2.25 pounds
• 1 m flour = 0.7 kg flour
3.2... show full transcript
Worked Solution & Example Answer:Aunt Abby will bake the wedding cake - NSC Mathematical Literacy - Question 3 - 2018 - Paper 1
Step 1
3.2.1 Aunt Abby needs 3 and a half pounds of butter.
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Answer
To convert pounds to kilograms, we use the conversion factor:
1 kg = 2.25 pounds.
Let:
x = mass in kg
3.5 pounds = 3.5 / 2.25 kg = 1.5556 kg.
Thus, Aunt Abby needs approximately 1.56 kg of butter.
Step 2
3.2.2 If Aunt Abby needs 625 ml of flour, determine the mass of the flour in grams.
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Answer
Since 1 m of flour equals 0.7 kg, we convert the amount:
0.625 liters (625 ml) = 625 grams (as 1 liter of water weighs approximately 1000 grams).
Thus, the mass of the flour in grams is:
625 g (\times 0.7 = 437.5 g).
Therefore, Aunt Abby needs approximately 437.5 grams of flour.
Step 3
3.2.3 The cake should be baked at 356 °F. Determine what degree Celsius the oven should be turned.
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