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
Arlecino [84]
3 years ago
9

1.6.PS-21 Question Help Challenge A gold mine has two elevators, one for equipment and another for the miners. The equipment ele

vator descends 5 feet per second. The elevator for the miners descends 17 feet per second. One day, the equipment elevator begins to descend. After 29 seconds, the elevator for the miners begins to descend. What is the position of each elevator relative to the surface after another 16 seconds? At that time, which elevator is deeper? The position of the equipment elevator relative to the surface is feet​
Mathematics
1 answer:
melisa1 [442]3 years ago
3 0

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Equipment elevator :

Descent rate = 5 ft/s

Miner's elevator :

Descent rate = 17 ft/s

Position of elevator after 16 seconds

Total descent time of equipment elevator = (29 + 16) = 45 seconds

Position after 45 Seconds :

Descent rate * time

5ft/s * 45s = 225 ft

Descent time of Miner's elevator = 16 seconds

Position after 16 Seconds :

Descent rate * time

17ft/s * 16s = 272 fts

Miner's elevator is deeper = 272 feets > 225 fts

Position of equipment elevator relative to the surface = - 225fts

You might be interested in
A motorboat has a four hour supply of gasoline. How far from the marina can it travel if the rate going out against the current
Igoryamba

Answer:

The distance the marina can travel = x_{} = 48 miles

Step-by-step explanation:

The rate going out against the current is = u - v = 20 \frac{mi}{h}

The rate going out with the current is = u + v = 30 \frac{mi}{h}

Let the distance traveled by the motorboat = x_{}

Total time the boat can travel = 4 hours

⇒ Total time = ( Time taken by boat to go against the current ) + ( Time                                  taken by boat to go  with the current )

⇒ 4 = \frac{x}{u - v} + \frac{x}{u + v }

⇒ 4 = \frac{x}{20} + \frac{x}{30}

⇒ 4 = \frac{x}{12}

⇒ x_{} = 48 miles

This is the distance the marina can travel.

5 0
3 years ago
Solve the triangle. <br><br> B = 72°, b = 12, c = 8
Arada [10]
The answer is <span>12^2=x^2+8^2-16x(cos(72°) </span>
<span>x^2-4.9443x=80 </span>
<span>(x-2.4721)^2=86.1115 </span>
<span>x-2.4721=±9.2796 </span>
<span>x=11.7517 </span>

<span>B=72°, b=12, c=8, a=11.8 </span>
<span>C=arcsin(8/12*sin(72°))=39.3° </span>
<span>A=68.7° </span>
8 0
3 years ago
Read 2 more answers
The four digit 489A is divisible by 11.<br> What digit does A represent?
wariber [46]
It is 5! Hope I can help! :)
6 0
3 years ago
Pls instruct me on this.
Levart [38]

For x = ay - bz:

Add bz to both sides:

ay = x + bz

Divide a on both sides:

y = (x + bz)/a

For xy + yz = 10:

Distribute y from the left side:

y * (x + z) = 10

Divide by x + z:

y = 10/(x + z)

For (ab - ac)/z = x:

Multiply by z on both sides:

ab - ac = xz

Take out a from the left side:

a * (b - c) = xz

Divide by b - c on both sides:

a = xz/(b - c)

8 0
4 years ago
Share 270g in the ratio 5 : 4
Phantasy [73]

Answer:

150:120

Step-by-step explanation:

U add the 2 ratios 5+4=9

270/9=30

30*5=150

30*4=120

8 0
3 years ago
Other questions:
  • Tristan bought an orange that weighs 1/5 pound. He cut the orange into 8 slices. How much does each orange slice weigh?
    13·2 answers
  • Aramis showed the division of 6p2 + 9p + 3 by 3p.
    7·2 answers
  • The midpoint for 3.99 and 4
    12·1 answer
  • Hannah had some tants 1/5 of the tarts were pineapple tarts and the rest were coconut tarts She gave 1/2 of the coconut tarts to
    11·1 answer
  • A gallon has a volume of 231 cubic inches. If a gallon of milk was sold im a perfectly cubical container, to the nearest tenth o
    7·1 answer
  • Please give me the answer for x + 4 equals 7
    8·2 answers
  • Please help I need to to know the answer to the nearest meter
    12·1 answer
  • Which of the following represents 10% of 45,000?<br>O 4.5<br>45<br>0 450<br>O 4.500​
    11·2 answers
  • What is the main kind of figurative language is in this poem?
    5·2 answers
  • What is the difference between 4 and -5?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!