Answer:
whatever operation u used , execpt decimals
Step-by-step explanation:
real world problems are just like normal math, with rulrs
1. when your dealing with people, round the decimal up or down and put it in the operation, if the answer fits use it, same with money
2. fractions are, mixed can be converted into decimals, like 0.25, 25% as 1/4, or 1.25, 125% or 1 1/4
Based on the fact that the scuba diver was below sea level, the expression that shows their distance after 30 minutes is -120.9 - 42.5 and the elevation is -163.4 feet.
<h3>What is the diver's elevation?</h3>
Because the diver is below sea level, their elevation will be expressed in negatives.
This means that the elevation is -120.9 feet.
If the diver's elevation decreases by 42.5 feet, the equation for the new elevation is therefore:
= -120.9 - 42.5
When solved, this is:
= -163.4 feet
Find out more on elevation at brainly.com/question/15607014.
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The answer is going to be 20 because half of 20 is 10
149x15=2235. If there were 8 duds in 149 it averages a dud every 18 firecrackers. So we know there's 2086 more so we for sure know there is more than 10 most likely more than 15 I'm assuming 15-30 so if there are any answers in that range I think it could be the answer (if more than one answer is in that range let me know and I'll try figuring out the exact answer)