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Here are the choices
A) 2.7 B) −38 C) –8.3 D) –27 E) 38
Sorry I'm bad at this lol :)
Use positive numbers for tall, and above ground. Use negative numbers for money owed, below ground, and below sea level.
Oh I get it now!! Thank you so much!
Look at the figure above. Think of ground level as being zero on a vertical (up and down) number line. Anything above ground is a positive number. Anything below ground is a negative number.
The same is true fro sea level. Sea level is zero on a vertical number line. The sail of a boat that is 20 ft above sea level is represented by 20 ft. A scuba diver who dives to a depth of 38 ft below sea level is at -38 ft.
You can also use positive and negative amounts to represent money. Money you have is positive. Money you owe is negative. For example, in one pocket you have $5. In your other pocket you have $7. In your piggy bank you have $12. You owe your friend $3. How much total money do you really have? Add all the amounts, but call the amounts you own positive and the amount you owe negative. Amounts you have: $5, $7, $12 Amount you owe: -$3 Now add all the amounts (being careful with positive and negative signs): $5 + $7 + $12 + (-$3) = $5 + $7 + $12 - $3 = $24 - $3 = $21