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NISA [10]
3 years ago
9

There is an elevator in a building that is 450 feet tall with 30 stories. Starting from the 20th floor, the elevator descends st

eadily toward the bottom floor, passing the 15th floor half a minute after its descent started. The graph below summarizes this information. Based on the graph, determine how fast the elevator travels and the time it would take to go from the 20th floor to the bottom of the building.
Mathematics
1 answer:
olga2289 [7]3 years ago
6 0

1450 ft / 29.6 ft/s = 48.9864864865 seconds

Step-by-step explanation:

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Which of the following terms best describes three points that all lie in a straight line?A. CollinearB. CongruentC. EqualD. Midp
Ket [755]

Answer:

A. Collinear

Step-by-step explanation:

three points that all lie in a straight line

A. Collinear- means along the same line

B. Congruent  - means the same

C. Equal  = means the same

D. Midpoint= means the middle

8 0
3 years ago
Read 2 more answers
3 less than the quotient of 20 and x
UkoKoshka [18]
It would be (20/x) -3
3 0
3 years ago
HELP PLEASE !!!
Lana71 [14]
972-4=968 and 62-4=58
The highest common number between 968 and 58 is 2 so 968 in fractions is 484/2 and 58 is 29/2

If you multiply these two together you will get 14036/2
5 0
3 years ago
The amount of $100 is divided into two first prizes of equal value and three second prizes of equal
ahrayia [7]

Answer:

first prizes = $34

second prizes = $8

Step-by-step explanation:

8 × 3 = 24 100 - 24 = 76

76 ÷ 2 = 38

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5 0
2 years ago
HELPPPPPPPP I NEED THE ANSWER PLZZZZZZZZZZZ!!!!!!!!!!! the solutions plz
Vesnalui [34]

Answer:

  1. c = -4.5
  2. z = 20
  3. x = -12
  4. a = -4/7

Step-by-step explanation:

A way to do this that will always work is ...

  • eliminate parenthses and collect terms
  • subtract any constants from the left side
  • subtract any variable terms from the right side
  • divide by the coefficient of the variable

1.

  • 8c -11 -6c = -2
  • 2c -11 = -2
  • 2c = 9
  • c = 4.5

2.

  • 3z +4 -2z -9 = 15
  • z -5 = 15
  • z = 20

3.

  • 12 -4x +18 = 36 +4x +18 -6x
  • 30 -4x = 54 -2x
  • -4x = 24 -2x
  • -2x = 24
  • x = -12

4.

  • 36a -9a -5 = 6a -17
  • 27a -5 = 6a -17
  • 27a = 6a -12
  • 21a = -12
  • a = -12/21 = -4/7
6 0
3 years ago
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