1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irinina [24]
1 year ago
10

A mine elevator was at a depth of -120 feet. After 15 seconds, the mine elevator was at a depth of -30 feet. What expression can

be represented how to find the speed of the mine elevator in feet per second?
Mathematics
1 answer:
Dafna11 [192]1 year ago
4 0

Answer:

The answers to the given question are:

i.  The equipment elevator is at a depth of 176 feet (-176 feet), while the miner's elevator is at a depth of 210 feet (-210 feet) below the surface.

ii. The miner's elevator is deeper than that of the equipment.

The speed of an object is the rate at which the object moves.

i.e. speed =

Thus,

Speed of the equipment elevator = 4 feet per second

Speed of the miner's elevator = 15 feet per second.

Time of descent of the equipment elevator = 30 + 14

                                 = 44 seconds

So that, the distance of the elevator at this time is;

speed =

⇒ distance = speed x time

                  = 4 x 44

                  = 176

  distance = - 176 feet

The distance of the miner's elevator after 14 seconds is:

speed =

⇒ distance = speed x time

                 = 15 x 14

                 = 210

 distance = - 210 feet

Thus, after another 14 seconds, the equipment elevator is at a depth of 176 feet (-176 feet), while the miner's elevator is at a depth of 210 feet (-210 feet) below the surface.

Therefore, the miner's elevator is deeper than that of the equipment.

Step-by-step explanation:

done

You might be interested in
This graph shows a proportional relationship.
Elodia [21]

Answer:

  • k = 12

Step-by-step explanation:

One pair of coordinates is sufficient to work out the constant of proportionality.

<u>Equation in general form:</u>

  • y = kx

and

  • Point (3, 36)

<u>Substitute x- and y- coordinates into equation and find the value of k:</u>

  • 36 = k*3
  • k = 36/3
  • k = 12
8 0
2 years ago
What is the value of w?<br><br><br> A.) 7<br> B.) 3.5<br> C.) 7 square root of 3<br> D.) 14
sammy [17]
D. 14 

LL = 1/2 * Hsqrt3
7sqrt3 = 1/2 * ysqrt3
24.25 = ysqrt3
24.25/sqrt3 = y
y = 14
4 0
3 years ago
Read 2 more answers
Cam has 32 dollars. How many roses can he afford to buy?
Vlad [161]

Answer:

8 roses

Step-by-step explanation:

roses cost about 4 dollars, and 8 times 4=32

6 0
2 years ago
Which expression is represented by the model?
djverab [1.8K]

Answer:

the correct answer is d. -x + 3

8 0
3 years ago
Read 2 more answers
How many times greater is 1 than 1/4
melisa1 [442]

1 is 4 times greater than 1/4

If you multiply 1/4 by 4 you get 1

4 0
3 years ago
Other questions:
  • A real world solution for <br> 4.5n+2.5=19
    10·1 answer
  • A store is having a sale where everything is 15% off. Which expression below does not represent the cost of an item in the store
    9·1 answer
  • Which function has a simplified base of 4? f(x) = 2 f(x) = 2 f(x) = 4 f(x) = 4
    14·2 answers
  • Passage : ( -5/6) + 2/4
    5·1 answer
  • Point slope form equations can be converted into slope intercept form. Distinguish whether the following
    13·1 answer
  • Eugene can type 55 words per minuet. Allen can type 80 words in 2 minuets. If Eugene and Allen each type for 30 minuets, how man
    15·1 answer
  • If 3x – 2 (2 + 1) = 4, then 5x =?
    7·1 answer
  • Find the area of the kite please. image included!!!
    6·1 answer
  • For the following two numbers, find two factors of the first number such that their product is the first number and their sum is
    15·1 answer
  • Put the expressions in order from least to greatest.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!