The elevation of the basement floor in a building is -14 ft. The elevation of the roof is 36 feet. What is the distance from the basement floor to the roof?
A)
-50 ft
B)
-24 ft
C)
24 ft
D)
50 ft

- anonymous

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- anonymous

Well basically all you do here is add 14 and 36 to get your answer. You finish :)

- wmj259

y(final)-y(initial)=y(total) You want to solve for y(total). y(final) is the roof elevation. an y(initial) is your basement elevation.

- anonymous

negative or positive? :/

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## More answers

- wmj259

If you walk up the stairs what do you think the displacement should be?

- anonymous

positive?

- wmj259

Correct. Do you understand why it should be positive?

- anonymous

The equation for this is | -14 + 36 | Solve

- anonymous

because elavation is going up?

- anonymous

Correct

- wmj259

@TheBallisticOne, That does not look correct because you first are basically adding a negative number and then after taking the difference you take the absolute value.

- anonymous

can i ask you guys some more? :)

- wmj259

Based on the formula you gave that would mean the elevation is 22 feet.

- anonymous

Oh you're right @wmj259 |-14|+36?

- anonymous

i put 50

- anonymous

i put 50

- anonymous

Which is correct.

- anonymous

kk next question :)

- anonymous

The price of a gallon of gasoline was $1.65. The price rose y dollars. Then the price dropped $0.15 and later rose again by $0.45. Now the price of gasoline is?
Which expression could be used to find the price of the gasoline?
A)
1.9 + y
Eliminate
B)
1.95 + y
C)
2.0 + y
D)
2.1 + y

- anonymous

First solve (1.65 - 0.15) + 0.45
The answer is (Above Solution) + y

- anonymous

kk ill tell u my answer

- anonymous

1.95+y?

- wmj259

1.65+y-0.15+0.45

- anonymous

Correct good job :)

- anonymous

thxx :)

- anonymous

You're welcome

- anonymous

Which property explains why these two expressions are equal?
7 + q + 4 = 4 + 7 + q
A)
associative
B)
commutative
C)
distributive
D)
inverse

- anonymous

?

- anonymous

Solve from these definitions
Associative - Able to move around parenthesis and still get the same answer.
Commutative - able to move numbers and variables and still get the same answer.
Distributive - able to distribute a factor to two different numbers using the same property for instance k(7-9)=(k7)-(k9)

- anonymous

commutative?

- anonymous

Correct

- anonymous

WOW I cant believe i didnt get that _ . _

- anonymous

A football player caught the ball and made a gain of 8 yards on the first play. On the next play the team lost 12 yards. How many yards do they need to gain on the next play to get back to their original position?
A)
4
B)
6
C)
8
D)
12

- anonymous

Because the numbers commute (that's how i remember)

- anonymous

oh yea... that could help

- anonymous

last question sorry for all the trouble :/

- anonymous

Np

- anonymous

Assume the original position is 0.

- anonymous

First play is the equation 0+8=

- anonymous

which is 8

- anonymous

Right

- anonymous

Next play is the equation 8-12=

- anonymous

-4

- anonymous

Correct

- anonymous

So how much do you need to add or subtract to get back to 0

- anonymous

That's your answer

- anonymous

4?

- anonymous

Correct

- anonymous

thanks for ALL the help :)

- anonymous

You're very welcome :D

- anonymous

wish i couldve gave you a medal i fanned you tho :)

- anonymous

It's ok

- anonymous

NOW i have to do a free response _ . _

- anonymous

lol

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