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
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