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Solve these math problems: 3.1 What is the purpose of this fundraising? 3.2 What is the mass of 12 eggs in kg? 3.3 How many ml are in 2.5 tsp? 3.4 How many cups is 625 ml? 3.5 If baking starts at 11:3

Mathematics

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5 parts
3.2

0.6132 kg\text{0.6132 kg}

3.3

12.5 ml\text{12.5 ml}

3.4

2.5 cups\text{2.5 cups}

3.5

13:05\text{13:05}

3.6

valid\text{valid}

Step-by-step solution

9 steps

Here are the solutions to your questions.

Part 3.1

The purpose of this fundraising is to buy equipment for cricket.

Part 3.2

0.6132 kg\text{0.6132 kg}

  1. Calculate the total mass of 12 eggs in grams.

    Total mass in grams=12 eggs×51.1gegg=613.2 g\text{Total mass in grams} = 12 \text{ eggs} \times 51.1 \frac{\text{g}}{\text{egg}} = 613.2 \text{ g}

  2. Convert the total mass from grams to kilograms.

    Total mass in kg=613.2 g×1 kg1000 g=0.6132 kg\text{Total mass in kg} = 613.2 \text{ g} \times \frac{1 \text{ kg}}{1000 \text{ g}} = 0.6132 \text{ kg}

    The mass of 12 eggs is 0.6132 kg\boxed{\text{0.6132 kg}}.

Part 3.3

12.5 ml\text{12.5 ml}

  1. Use the conversion factor 1 teaspoon = 5 ml to find the volume in ml for 2.5 teaspoons.

    Volume in ml=2.5 teaspoons×5mlteaspoon=12.5 ml\text{Volume in ml} = 2.5 \text{ teaspoons} \times 5 \frac{\text{ml}}{\text{teaspoon}} = 12.5 \text{ ml}

    There are 12.5 ml\boxed{\text{12.5 ml}} in 2.5 teaspoons.

Part 3.4

2.5 cups\text{2.5 cups}

  1. Use the conversion factor 1 cup = 250 ml to convert 625 ml to cups.

    Volume in cups=625 ml×1 cup250 ml=2.5 cups\text{Volume in cups} = 625 \text{ ml} \times \frac{1 \text{ cup}}{250 \text{ ml}} = 2.5 \text{ cups}

    625 ml is equal to 2.5 cups\boxed{\text{2.5 cups}}.

Part 3.5

13:05\text{13:05}

  1. Convert the baking time from hours to hours and minutes.

    1.5 hours=1 hour+0.5 hours×60minuteshour=1 hour 30 minutes1.5 \text{ hours} = 1 \text{ hour} + 0.5 \text{ hours} \times 60 \frac{\text{minutes}}{\text{hour}} = 1 \text{ hour } 30 \text{ minutes}

  2. Add the baking time to the start time.

    Start time=11:35\text{Start time} = 11:35 Baking duration=+1:30\text{Baking duration} = + 1:30 End time=12:65\text{End time} = 12:65

    Since 65 minutes is 1 hour and 5 minutes, we adjust the time.

    12:65=13:0512:65 = 13:05

    The cake will be ready at 13:05\boxed{\text{13:05}}.

Part 3.6

valid\text{valid}

  1. Calculate the total amount of whipped cream needed for four cakes.

    Whipped cream per cake=250 ml\text{Whipped cream per cake} = 250 \text{ ml} Total whipped cream for 4 cakes=4×250 ml=1000 ml\text{Total whipped cream for 4 cakes} = 4 \times 250 \text{ ml} = 1000 \text{ ml}

  2. Convert 1 litre to millilitres.

    1 litre=1000 ml1 \text{ litre} = 1000 \text{ ml}

  3. Compare the calculated amount with the stated amount.

    The pupil stated they will need 1 litre (1000 ml) of whipped cream for four cakes. Our calculation shows that 1000 ml of whipped cream is needed for four cakes.
    The statement is valid\boxed{\text{valid}}.

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