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
KatRina [158]
3 years ago
10

The amount a spring will stretch varies directly with the amount of weight attached to the spring. If a spring stretches 2.1 inc

hes when 80 pounds is attached, how far will it stretch when 40 pounds is attached?
Mathematics
2 answers:
Alex73 [517]3 years ago
8 0

Answer:

A. 1.05 in.

Step-by-step explanation:

aleksklad [387]3 years ago
3 0

Answer:

1.05\ in

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

Let

x -----> the amount of weight

y ----- the amount a spring will stretch

we know that

For x=80 lb, y=2.1 in

<em>Find the value of k (constant of proportionality)</em>

k=y/x

substitute the values

k=2.1/80

The linear equation is

y=(2.1/80)x

How far will it stretch when 40 pounds is attached?

For x=40 lb

substitute the value of x in the linear equation and solve for y

y=(2.1/80)(40)=1.05\ in

You might be interested in
Two rhombuses with the same side lengths are always congruent ?
lyudmila [28]

Answer:

False

Step-by-step explanation:

A rhombus is a quadrilateral with

1. all side length equal

2. opposite side parallel

3. opposite angles are congruent.

______________________________________

If there are two rhombus with same side length ,

conditions so that they must be always congruent.

1. Side length must be equal

2. corresponding angles to equal sides must also be equal.

It is possible that the sides of two rhombus will be same

but their angles can differ and hence the two rhombus may or may not be congruent.

Thus,

Two rhombuses with the same side lengths are always congruent

given statement is false

8 0
3 years ago
The table compares the daily average temperature in a park (in degrees Celsius) and the number of people who visited the park th
Simora [160]

Answer:

YES, the number of people who visited the park can be represented as a function of the daily average temperature.

Step-by-step explanation:

From the table of values given which defines the number of visitors to the park as a function of daily temperature, the temperature is the domain values (independent variable), while the number of visitors is the range values (dependent variable).

For any relation to be considered a function, as a principle, any given domain value must have exactly one range value. In other words, there must not be two different range values assign to one domain value.

This means, for the relation between temperature and number of visitors to be considered a function, it must not have a domain value that is mapped to more than one range value.

Examining the table given, if we map each domain value to the range value, we will find out that there are only 1 exact range value for a domain value.

<em>Therefore, we can say: YES, the number of people who visited the park can be represented as a function of the daily average temperature.</em>

7 0
3 years ago
Read 2 more answers
Using the given information, find the sum of each arithmetic series. 12. a, = 6 d = 7 n = = 12 S 12​
Naya [18.7K]

Answer:

Step-by-step explanation

We need to have more infomation to finish this problem completely

3 0
2 years ago
Please help! The question is in the picture!
Kamila [148]

Answer:

A.

Step-by-step explanation:

Distributive property means (in this case) to multiply what's inside the () by what's outside the (). Therefore, I believe A is the only one that makes sense.

Hope this helps!

5 0
3 years ago
In its first year of operation, Big Lake Camp had 40 campers. This year’s attendance was 180% of the first year’s. How many camp
PtichkaEL [24]
I think 70 campers if im not mistaken
3 0
3 years ago
Read 3 more answers
Other questions:
  • A grocery store gives away a $10 gift card to every 25th customer and a $20 gift card to every 60th customer. After this custome
    9·1 answer
  • 1 ft. = 12 in<br> Convert 4 feet to inches.<br> Convert 48 inches to feet.
    14·1 answer
  • Which of the following is the graph of y=-(x-2)9 - 5?
    8·2 answers
  • Directions: Find the value of x. Round your answer to the nearest tenth.
    9·2 answers
  • A rectangle has an area of 48 cm².
    8·2 answers
  • Enlarge triangle ABC by scale factor of -2 and centre (4,2)
    10·1 answer
  • Help me please, This is due in a little
    13·2 answers
  • The coordinates of one endpoint of a line segment are (-3,-5). The line segment is 11 units long. What are the other possible en
    9·1 answer
  • A parabola opening up or down has vertex (0,-4) and passes through (-12,14). Write its equation in vertex form
    7·1 answer
  • What da dog doing?<br><br><br><br><br><br><br><br>can any one tell me​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!