Dennis let go of a penny at the top of a well, and the penny fell straight down to the bottom of the well. The top of the well was 1 1/2 meters above ground. the bottom of the well was 11 meters below ground.

the following equation describes the situation

1 1/2 + (-12 1/2) = - 11

what does - 12 1/2 tell us

A) the distance between ground level and the bottom of the well is 12 1/2 meters

B) The distance between the top of the well and the bottom of the well was 12 1/2 meters

C) None of the above

The answer is B) The distance between the top of the well and the bottom of the well was 12 1/2

Question

Dennis let go of a penny at the top of a well, and the penny fell straight down to the bottom of the well. The top of the well was 1½ meters above ground. the bottom of the well was 1 meters below ground.

The following equation describes the situation

1½ + (-12½) = 11

what does - 12½ tell us

Answer:

It tells us about the distance between the top of the well and the bottom of the well was 12½

Step-by-step explanation:

When Dennis let go of he penny and the penny went into the well; expectedly, the penny will move straight down to the bottom, provided there's no barrier between the top and the bottom of the well.

If the well is 1½ above the ground and the and the distance between the penny and the ground is calculated as

Distance from top of the well - Depth of well.

Hence, 12½ represent the depth of the well or the distance between the top of the well and the bottom of the well