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
SCORPION-xisa [38]
2 years ago
9

The distance a coiled spring stretches varies directly with the amount of weight hanging on the spring. If a spring stretches 2

cm when a 30 gram weight is hung from it, how far will it stretch when a 75 gram weight is hung from the spring?
Mathematics
1 answer:
STALIN [3.7K]2 years ago
3 0

Answer:

5 cm

Step-by-step explanation:

The distance a coiled spring stretches varies directly with the amount of weight hanging on the spring.

Distance = D

Weight = W

Hence:

D ∝ W

D = kW

Where k is constant of proportionality

Step 1

We solve for k

If a spring stretches 2 cm when a 30 gram weight is hung from it.

2 = 30k

k = 2/30

k = 1/15

Step 2

how far will it stretch when a 75 gram weight is hung from the spring?

D = kW

We are solving for D

k = 1/15

D = 1/15 × 75

D = 5 cm

The spring would stretch 5cm with a weight of 75 gram.

You might be interested in
This table shows the three different ways that toy animals are packaged at a factory
steposvetlana [31]

Answer:

I dont have the table I need it to answers

4 0
3 years ago
Read 2 more answers
Hey i really need help its 11:32 where I am and this assignments due at 12:00<br>please!!!!​
USPshnik [31]
%/100 =is/of
Good equation our teacher taught us and the one you’re looking for put x
7 0
2 years ago
Read 2 more answers
An airplane flies with a constant speed of 620 miles per hour. How long will it take to
LekaFEV [45]

Answer:

30 minutes

Step-by-step explanation:

Alright lets start by laying out what the problem gives us :

A plane flies 620 mph.

It is asking how long it will take to travel 310 miles.

We need to give our answer in minutes or hours.

So lets take mph and look at the full meaning "Miles per hour"

An hour has 60 minutes in it.

So really it is saying miles per 60 minutes as well as miles per hour

So you could say the plane is traveling 620 miles every 60 minutes.

So now lets look at the number 310.

Just looking at it I can tell you that 310 looks very close to half of 620, in fact it is exactly half!

So lets divide the 620 mph by the 310 miles it is asking and we get 2! Proving that 310 is half of 620.

Alright now lets divide both the number of miles and number of minutes :

620 miles per 60 minutes

divided by 2 both miles and minutes

310 miles per 30 minutes

So this is your answer. After this you get that it would take 30 minutes to travel 310 miles in a plane going 620 miles per hour!

I hope this helps and I could help you understand it. :)

If you have any questions feel free to comment or dm me.

7 0
2 years ago
I have 1 litre of water in a jug. On the way to my table I spill some. I have 780ml left. How much have I lost?​
irina1246 [14]

Step-by-step explanation:

1 litre = 1000ml

780ml left

lost amount = 1000 - 780 = 220ml

3 0
2 years ago
The product of a 7 and a number.
Virty [35]

it would look like this: x times 7 -> 7x

8 0
3 years ago
Other questions:
  • Which type of transformation is described (x,y) (x+2, y+3)
    15·1 answer
  • 1 point) the solution of a certain differential equation is of the form y(t)=aexp(3t)+bexp(4t), y ( t ) = a exp ⁡ ( 3 t ) + b ex
    12·1 answer
  • Convert the equation 3x+2y=14 to slope intercept form
    7·1 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
  • -7 2/3+ -5 1/2+8 3/4
    5·1 answer
  • PLEASE ANSWER WILL MARK BRAINIEST IF CORRECT :)
    13·1 answer
  • A) Calculate the magnitude of the angle a in the diagram above.
    11·1 answer
  • 3. Put the following decimals in order from least to greatest. Explain the method that you used. 3.7, 3.017, 3.17, 3.07, 3.71, 3
    12·1 answer
  • What is the best estimate of of the sum of the fractions?
    15·2 answers
  • Which property is best used prove a quadrilateral is a rectangle?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!