Question

While Jackie was in Hawaii, she would dive for shells. One afternoon she dove −7.8 feet. Her next two dives were each 218 feet deeper than the dive before it. What were the depths of her second and third dives?

Answer 1

Jackie's second dive was 210.2 feet deeper and her third dive was 428.2 feet deeper.

Step-by-step explanation:

Jackie's first dive was −7.8 feet. To find the depths of her second and third dives, you need to calculate each subsequent dive as being 218 feet deeper than the dive before it.

1. Determine the depth of the second dive by adding the depth of the first dive to 218 feet.
2. Calculate the depth of the third dive by adding 218 feet to the depth of the second dive.

Let's do the math:

• Second dive: −7.8 feet + 218 feet = 210.2 feet (deeper).
• Third dive: 210.2 feet + 218 feet = 428.2 feet (deeper).

Therefore, Jackie's second and third dives were 210.2 feet and 428.2 feet deeper respectively.