Question

a submarine dove 35 feet per hour for 7 hours. How deep os the submarine if it originally started at 107 feet below sea level

Answer 1

Final submarine depth below sea level is 352 feet.

Step-by-step explanation:

35 feet per hour means 35 feet for every hour

So the total change in depth is 7 x 35

The starting depth was

107 feet

Final depth of 107 + 245 equals 352

Answer 2

The submarine is 352 feet deep.

35 × 7 = 245

245 + 107 = 352