The answer is -4 2/3
Explanation : The elevator is at 0, and went below ground level 90 feet, that would be -90, then it went up 20 feet, which would be -90 + 20 = -70
-70 ft / 15sec = - 4 2/3
I am not sure about the ground level and negative difference but that it is what I was taught. Below ground level is negative and above is positive. Therefore the elevator traveled up and it traveled -4 2/3 per second.
It so either 4 2/3 or - 4 2/3 but pretty sure it is - 4 2/3.
:)))
Answer:
I recoment using the formula because its different ways its taught
Step-by-step explanation:
maybe look up different formula's
Answer: 4.45 divided by 2 is 2.225
The answer is D
You just move all numbers to the left and set it equal to 0
And then you add all same variables together
After that you use the quadratic formula
Answer: 
Step-by-step explanation:
The greatest GCF is 5 because 5 goes into 15, and 10. Therefor, the answer would be 2/3.
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