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
Ulleksa [173]
3 years ago
12

Slope-rate of change- “if there were 12,000 in the Atlantic Ocean in 1950 and there are 3,600 dolphins today, what is the yearly

rate of change?” I don’t even know where to start. I need help.
Mathematics
1 answer:
jasenka [17]3 years ago
5 0

\bf \begin{array}{|cc|ll} \cline{1-2} \stackrel{x}{year}&\stackrel{y}{dolphins}\\ \cline{1-2} &\\ 1950&12000\\ 2018&3600 \\&\\ \cline{1-2} \end{array}~\hspace{5em}(\stackrel{x_1}{1950}~,~\stackrel{y_1}{12000})\qquad (\stackrel{x_2}{2018}~,~\stackrel{y_2}{3600}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{3600-12000}{2018-1950}\implies \cfrac{-8400}{68}~~\approx~~ \stackrel{\textit{rate of change}}{-123.53}


-8400/68 simplifies to to -2100/17,  dolphins/year, so 2100 less dolphins every 17 years.

and we can just divide those to get the decimal amount of -123.53, which means, 123.53  less dolphins every year.

of course, there's no such a thing as 0.53 of a dolphin, so, we can say "about" 123 less dolphins per year.

You might be interested in
Answer would be needed ! thanks
Vanyuwa [196]
55/A is the answer

Hope this helps
3 0
3 years ago
Read 2 more answers
Mrs. barney earns $80 for tutoring for 2 hours. If she gets a 10% raise, how much does she now earn per hour.
olga_2 [115]

Answer:$88


Step-by-step explanation:

multiply 80 dollars by 10% then add that answer to 80 dollars and that gives you 88 dollars


8 0
3 years ago
music magic offers live streaming for $9.99 a month with downloads at $0.50 a song. You have $30 a month budgeted for this servi
marin [14]

Step-by-step explanation:

The equation 0.5s+ 9.99=30 describes the situation.

9.99 is the fixed amount

0.5 is the cost for each song download

30 is the maximum amount spend for a month

Here 's' represents the number of songs download

0.5s+ 9.99=30 means

0.5 times the number of songs plus the fixed cost 9.99 should be equal to 30 dollars.

The solution to this equation is s=40.02.

s= 40.02  means 40 songs can be downloaded as per the budget

8 0
2 years ago
Raisins in a scoop of each brand
Anna11 [10]

Answer:

Check the explanation

Step-by-step explanation:

Kindly check the attached image below to see the step by step explanation to the question above.

4 0
3 years ago
X - 1 < 11
inna [77]

Answer:

If your looking for inequality then its x<12

Step-by-step explanation:

Move constant to the right and calculate

7 0
2 years ago
Other questions:
  • Solve the equation <br> n2 = 37
    12·1 answer
  • What is the measurement of
    13·2 answers
  • a scale on a map shows that 2 inches =25 miles part A how many inches on the map represents 60 miles part B how many miles are r
    8·2 answers
  • 7. Write a paragraph proof of theorem 3-8: in a plane, if two lines are perpendicular to the same line, then they are parallel t
    9·1 answer
  • Marty and Adam want to share 8/10 feet of rope, equally. What amount of rope should each person get?
    5·1 answer
  • Which of the following statements best describes the value of the expression 7x + 6 when x = 5? A. The result is a fraction. B.
    5·1 answer
  • Can someone help pls
    15·1 answer
  • A cube-shaped box has a volume of 27 cubic inches. Bethany says each side of the cube measures 9 inches because 9 × 3 = 27. Is B
    10·1 answer
  • What is the probability of picking 1 orange shirt out of 8
    15·1 answer
  • What is an equation of the line that passes through the points (-3,8) and (-2,3)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!