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ziro4ka [17]
3 years ago
5

Here are the dimensions of the oven tray Lucy bakes the cakes on. ←700mm→↑600mm↓.A cake tin is 25cm in diameter. How many cake t

ins can Lucy fit on the oven tray at one time?
Mathematics
2 answers:
GREYUIT [131]3 years ago
8 0
700*600=420,000
420,000/10=42,000
Diameter = 25
so radius = 12.5
Pi*12.5^2=625/4Pi
42,000/625/4 Pi =86.56169741
=86.6
she can fit 86 tins
SVETLANKA909090 [29]3 years ago
5 0

Answer:

8

Step-by-step explanation:

Dimension of the oven = 700 mm × 600 mm

First we change mm to cm

As we know 10 mm = 1 cm

So, 700 mm = 70 cm and 600 mm = 60 cm

Area of base of the oven = 60 × 70

                                          = 4200 cm²

A cake whose base is circular in 25 cm diameter.

Radius is half of diameter, r=12.5 cm

So, Area of the base of tin cake = πr²

                                                     = π×12.5²

                                                    ≈ 490.87 cm²

Number of cake fit on the oven tray =\dfrac{\text{Area of oven}}{\text{Base area of cake}}

                                                    =\dfrac{4200}{490.87}

                                                    \approx 8.55

Hence, exactly 8 cakes fit on the oven tray at one time.

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