Manuel is hiking up to a mountain top that is 1,207 feetabove sea level. Stephanie scuba dived to 23 feet below sealevel. What is the difference between these twomeasurements?
Accepted Solution
A:
Answer: 1230 feetStep-by-step explanation:Positive integers are used to express measurement above the sea level.Negative integers are used to express measurement below the sea level.Given : Manuel is hiking up to a mountain top that is 1,207 feet above sea level.In integers , it can be expressed as 1,207 feet .Stephanie scuba dived to 23 feet below sea level. In integers , it can be expressed as -23 feetThe difference between these two measurements will be :-1,207 feet-(-23 feet)=(1207-(-23)) feet=(1207+23) feet [∵ (-)(-)=(+)]=1230 feetHence, the difference between these two measurements= 1230 feet