Please I only want help, no answers.
The elevation of city A is 96 feet below sea level; the elevation of city C is 24 feet below sea level. The elevation of city D is 1/4 of the elevation of city C.
Part A: Write an expression to represent the elevation, in feet, of city D.
Part B: Solve the expression and explain why the answer is negative or positive.

- anonymous

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- anonymous

@pooja195?

- anonymous

@Preetha?
@dan815?

- anonymous

@jlrutherf?

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## More answers

- skullpatrol

Any ideas?

- anonymous

well do you do 24 - 1/4?

- skullpatrol

Nope, first you need to assign values for each city's elevation.

- anonymous

What do you mean by values?

- skullpatrol

What does it mean for a city to be 24 feet below sea level?

- anonymous

-24

- skullpatrol

Very good :-)

- anonymous

and so A is -94 C is -24 so is D -1/4?

- skullpatrol

D is not -1/4 because that would be 0.25 feet below sea level, right?

- anonymous

...idk but i disagree lol

- skullpatrol

1/4 = 0.25

- anonymous

I still dont know why it wouldnt be -1/4

- anonymous

wait....they would all be positive if you divide or multiply right?

- skullpatrol

Yes, but that is not what the question is asking for.

- anonymous

ok but it is for part b

- anonymous

So the expression would be D = -24 - 1/4?

- skullpatrol

Nope. Let's reread the problem carefully AND think about its meaning

- anonymous

i did like a 100 times ;(

- skullpatrol

Please I only want help, no answers.
The elevation of city A is 96 feet below sea level = -96; the elevation of city C is 24 feet below sea level = -24. The elevation of city D is 1/4 OF the elevation of city C. Of means multiply.
Part A: Write an expression to represent the elevation, in feet, of city D.
Part B: Solve the expression and explain why the answer is negative or positive.

- anonymous

Ok well just to be clear are we adding?

- anonymous

if we were would it be 24.25?

- skullpatrol

I think you have your letters mixed up in copying the question down. Pease check them.

- anonymous

Yea i just checked, i dont

- anonymous

I will figure this out later. Can you plz check my work on another question?
A jar contains 0.85 liter of strawberry juice and 0.50 liter of mango juice. Celina poured 0.15 liter of watermelon juice into the jar. She then drank 0.30 liter of the mixture.
Part A: Write an expression to represent the total amount of juice left in the jar. (5 points)
Part B: Identify which property is used in each step to simplify the expression
This is my work:
0.85 = strawberry
0.50 = mango
Added 0.15 of watermelon into the jar.
Drank 0.30.
Part A: Total = 1.5 Left = 1.2
The expression is J = (S + M) + (W - D)
J = (.85 + .50) + ( .15 - .30)
J = 1.2 liters
Part B: The property being used is Associative.

- mathstudent55

@beckyg111
This may help you understand what the first problem is asking.
John dug a hole 12 feet deep.
Bob dug a hole 1/4 the depth of John's hole.
How deep is Bob's hole?

- skullpatrol

The elevation of city A is 96 feet below sea level; the elevation of city C is 24 feet below sea level. The elevation of city D is 1/4 of the elevation of city C.
Part A: Write an expression to represent the elevation, in feet, of city D.
D = 0.25*C
Answer
Part B: Solve the expression and explain why the answer is negative or positive.
D = 0.25*(-24) = -6 feet below sea level
The answer is negative because it is below sea level.
Answer

- anonymous

@mathstudent55 would that be 3?

- anonymous

@skullpatrol
D = 1/16 ?

- skullpatrol

D = -6

- mathstudent55

Yes. How did you get 3?
You get 3 by multiplying 12 ft by 1/4, which is the same as 12 ft * 0.25
It's the same in your problem.
City C has an elevation of 24 ft below sea level.
That elevation can be written as a negative number, -24 ft.
City D has an elevation 1/4 of the elevation of city C, so city D's elevation is
1/4 * C
Notice the operation is 1/4 * C.
The elevation of D is not just 1/4. The elevation of city D is not simply -1/4 ft, or -0.25 ft.
It is 1/4 * (-24 ft)

- anonymous

Ok sooo multiplication was what i needed to do?

- mathstudent55

1/4 * C = 1/4 * (-24 ft) = 0.25 * (-24 ft) = -6 ft
The elevation of D is 6 ft below sea level.

- mathstudent55

Correct.
Just like in my example you multiplied 1/4 * 12 ft, here you multiply 1/4 * (-24 ft)

- anonymous

ok that makes more sense

- skullpatrol

1/4 OF means "multiply"

- mathstudent55

If you read @skullpatrol 's responses, you'll see that is what he was trying to tell you.

- anonymous

lol sorry

- mathstudent55

Don't be sorry. Keep studying and asking questions. That's how you learn. I like your attitude that you don't want answers; you want to understand how to solve the problem.

- skullpatrol

What does it mean for a city to be 24 feet below sea level?

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