answer.
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
Marat540
1 month ago
15

A spring stretches by 21.0 cm when a 135 n object is attached. what is the weight of a fish that would stretch the spring by 49

cm?
Mathematics
1 answer:
Inessa [12.5K]1 month ago
8 0
When the stretch is proportional to the weight, it can be expressed as:
weight/(49 cm) = (135 N)/(21 cm)
weight = (49/21)×135 N
weight = 315 N

The fish's weight would be 315 N.
You might be interested in
There are 345 students at a college who have taken a course in calculus, 212 who have taken a course in discrete mathematics, an
AnnZ [12381]

Answer:

There are 369 students who enrolled in either calculus or discrete mathematics.

Step-by-step explanation:

I'll create a Venn diagram to illustrate these figures.

Let’s define:

A represents the count of students who completed calculus.

B stands for those who took discrete mathematics.

We have the following:

A = a + (A \cap B)

Here, a denotes the students who studied calculus exclusively, while A \cap B represents those who took both subjects.

Using the same reasoning:

B = b + (A \cap B)

There are 188 students taking both calculus and discrete mathematics.

This implies that A \cap B = 188

A total of 212 students studied discrete mathematics.

<pBased on this, B = 212

345 students have attended a calculus course.

<pSo, from this information, A = 345

We find the total number of students who took either calculus or discrete mathematics.

(A \cup B) = A + B - (A \cap B) = 345 + 212 - 188 = 369

A total of 369 students participated in either calculus or discrete mathematics.

4 0
1 month ago
What is the value of x in the equation 4 x plus 8 y equals 40, when y equals 0.8? 4.6 8.4 10 12What is the value of a in the equ
AnnZ [12381]

Answer:

1. 8.4 2. 15

Step-by-step explanation:

1. 4x + 8y = 40

when y = 0.8

4x + 8 × 0.8 = 40

4x = 40 - 8 × 0.8

4x = 40 - 6.4 = 33.6

....x = 33.6 / 4 = 8.4

2. 3a + b = 54

when b = 9

3a + 9 = 54

3a = 54 - 9

3a = 45

.....a = 45 / 3 = 15

please rate me

8 0
1 month ago
Read 2 more answers
What is the value of n? 9x27+2x31-28= n
Svet_ta [12734]

n equals 277

9 multiplied by 27 plus 2 multiplied by 31 minus 28 gives n

243 plus 62 minus 28 results in n

305 minus 28 equals n

which means 277 is n


3 0
1 month ago
Read 2 more answers
Grace is comparing cell phone plans. A prepaid phone plan costs $0.20 per minute and has no monthly fee. A contracted phone plan
lawyer [12517]

Answer:

The graph for the prepaid plan will exhibit a steeper slope and a lower y-intercept.

I trust this information is correct.

Step-by-step explanation:

prepaid plan: y =.20x

contracted plan: y =.02x + 50

3 0
1 month ago
Read 2 more answers
A newspaper reports the following changes in the temperature of a city over 4 days: 3.24 degrees Celsius, negative 3 over 8 degr
PIT_PIT [12445]
 To find the average daily change in temperature, total the four daily changes and divide the sum by 4:

(3.24, -0.375, -0.15, 0.778) / 4 results in about 0.87 degrees per day.
7 0
1 month ago
Read 2 more answers
Other questions:
  • Julian is using a biking app that compares his position to a simulated biker traveling Julian's target speed. When Julian is beh
    13·1 answer
  • Charlie bought a pair of shorts at the store when they were having a 45% off sale. If the regular price of the pair of shorts wa
    7·2 answers
  • Fourteen less than three fourths of a number is negative eight. Find the number
    5·1 answer
  • What is the sum of the infinite geometric series? Sigma-Summation Underscript n = 1 Overscript 4 EndScripts (negative 144) (one-
    5·2 answers
  • A car driving on a straight track accelerates at a rate of 3.2 m/s2 for 14 s. If the initial velocity of the car was 5.1 m/s, an
    8·1 answer
  • Omar recorded the number of hours he worked each week for a year. Below is a random sample that he took from his data. 13, 17, 9
    12·2 answers
  • 3A wholesaler buys baseball gloves for $15 each. He then marks up the price to $20. By what percentage was the price of the base
    12·1 answer
  • To find the number in a square multiply the numbers in the two circles connected to it brainly
    14·1 answer
  • A greenhouse in a tri-county area has kept track of its customers for the last several years and has determined that it has abou
    14·1 answer
  • In a sample of 88 adults selected randomly from one town, it is found that 6 of them have been exposed to a particular strain of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!