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 tins can lucy fit on the oven tray at one time?

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

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

This is if you are looking for inverses

Step-by-step explanation:

Switch y and x then solve for y.

then at the end switch it again but for y put f to the power of -1

1) y = 3x+5

x=3y+5

X+5/3=y

2) F(X)= 1/4x

x = 1/4y

x/1/4=y

3) x+5/.4 = y

4) x+9/.75

5)x-8/-2=y

6)x+51/17

7)x+25/5=y