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
Alex787 [66]
2 years ago
14

Because Charles David Keeling and his new colleagues began measuring CO2 in 1958, we now have an excellent record of how CO2 con

centrations have changed in the atmosphere over time. From 1960 to 2010, the concentration of CO2 in the atmosphere increased from 320 to 390 ppm (parts per million).
Based on these two points in time, what has been the average annual increase of CO2 in the atmosphere?

Time = 2010 - 1960 = 50 years

Increase in CO2 = 390 ppm - 320 ppm = 70 ppm

Average annual increase in CO2 = 70 ppm / 50 years = 1.4 ppm/year


1. If the annual rate of CO2 increase is 1.4 ppm, wht concentration of CO2 do you predict for the year 2100?

2. From 2000 to 2010, the rate of increase grew to 1.9 ppm per year. Based on this faster rate, what concentration of CO2 do you predict for the year 2100?

Mathematics
1 answer:
Alecsey [184]2 years ago
6 0

Answer:

1. 516 ppm; 2. 561 ppm

Step-by-step explanation:

1. CO₂ increase at old rate

Time = 2100 - 2010 = 90 years

Increase in CO₂ = 90 yr × (1.4 ppm/1 yr) = 126 ppm

CO₂ in 2010 = 390 + 126 = 516 ppm

At the old rate, the CO₂ concentration in 2100 will be 516 ppm.

2. CO₂ increase at new rate

Time = 2100 - 2010 = 90 years

Increase in CO₂ = 90 yr × (1.9 ppm/1 yr) = 171 ppm

CO₂ in 2010 = 390 + 171 = 561 ppm

At the new rate, the CO₂ concentration in 2100 will be 561 ppm.

You might be interested in
Mandy has a 10.2-ounce container of mustard. She uses 130 of the mustard to put on her hot dog each time. How many ounces of mus
geniusboy [140]

Answer: it is 10 over 100

Step-by-step explanation:

8 0
3 years ago
Describe the simplest way to find the total surface area of a cube. Pleas hurry help
ZanzabumX [31]

The simplest way to find the surface area of a cube is to multiply the length and the width.

7 0
3 years ago
Solve for x: 6(4x+5)=3(x+8)+3 round to nearest hundredth
Hitman42 [59]
Solve for x by simplifying both sides of the equation then isolating teh varible.
your answer = - 1/7
3 0
3 years ago
Could someone please answer my few questions? That'd be great! I'll give 20 points!!!
Alex Ar [27]
Y=3.6x is direct variation. The constant is 3.6
8y=2x is the same as y=0.25x. It is direct variation, and the constant is 0.25

1. Assuming "dinners made" is on the y-axis, DV is y=2x. The constant is 2

2. This is not direct variation, and therefore does not have a constant of variation
4 0
3 years ago
What is the quotation -3/8 divided by -1/4
Bumek [7]

Answer:

3/2

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the square root of 5/3 as a fraction?
    10·2 answers
  • Which compound inequality can be used to solve the inequality. |3×+2| >7​
    13·2 answers
  • Is 0.4 m less than 5cm?
    11·2 answers
  • A dog weighs 0.5 pound when it is born.
    11·1 answer
  • A store sells gift cards in preset amounts. You can purchase gift cards for ​$20 or ​$30. You have spent ​$680 on gift cards. Wr
    12·1 answer
  • Abi takes a job with a starting salary of $100,000 for the first year. She earns a 3% increase each year. To the nearest dollar,
    15·2 answers
  • Estimate the following product in scientific notation, and then select best answer for the products power of 10.
    14·1 answer
  • 12 gallons of water are used to completely fill 5 fish tanks. If each tank holds the same amount of water, how many gallons will
    15·2 answers
  • Solve for x. Round to the nearest tenth, if necessary.
    6·1 answer
  • Can someone please help with parts a, c, and e (picture included)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!