Question

Marge Rine has a cube of butter

with sides of 4 cm.
She spreads all the butter evenly
on her piece of toast which is
8 cm by 10cm. [Then she adds the jam.
How thick is the butter on the toast?
A. 2 mm
B. 4 mm
C. 8 mm
D. 1 cm
E. 4 cm

Answer 1

The thickness of the butter on the toast is 8 mm.

Step-by-step explanation:

To find the thickness of the butter on the toast, we need to first calculate the volume of the cube of butter. The volume of a cube is found by multiplying the length, width, and height of the cube. In this case, all sides of the cube are 4 cm, so the volume is 4 cm x 4 cm x 4 cm = 64 cm³.

Next, we need to find the area of the toast. The area of a rectangle is found by multiplying its length and width. In this case, the length of the toast is 8 cm and the width is 10 cm, so the area is 8 cm x 10 cm = 80 cm².

Finally, to find the thickness of the butter on the toast, we divide the volume of the butter by the area of the toast: 64 cm³ / 80 cm² = 0.8 cm = 8 mm. Therefore, the thickness of the butter on the toast is 8 mm.