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
Bad White [126]
3 years ago
8

Please help

Mathematics
2 answers:
Luda [366]3 years ago
8 0
2 tonnes =2000kg
2000kg÷ 96=21.05 (2dp)
therefore it would take around 21 years for the elephant to increase his mass 2 tonnes
Sedaia [141]3 years ago
3 0

Answer:

20 years.

Step-by-step explanation:

Let x represent number of years.

We have been given that a baby elephant has a mass of 105 kg, the baby elephant increases in mass by 95 kg per year.

The mass of baby after x years would be 95x.

The total mass of baby after x years would be 95x+105.

We know 1 metric tom equals 1000 kg, so 2 metric ton equals 2000 kg.

Now ,we will equate total mass of elephant by 2000 and solve for x as:

95x+105=2,000

95x+105-105=2,000-105

95x=1895

\frac{95x}{95}=\frac{1895}{95}

x=19.94736

x\approx 20

Therefore, it will take 20 years for the baby elephant's mass to increase 2 tonnes.

You might be interested in
A survey asks, "If the husband in a family wants children, but the wife decides that she does not want any children, is it all r
vodka [1.7K]

Answer:

a. The 99% confidence interval for the population proportion is (0.7872, 0.8610).

D. Yes, we can conclude that the population proportion exceeds 75% because 75% is below the lowest believable value of the confidence interval.

b. The 99% confidence interval would be wider than a 95% confidence interval.

As the confidence level increases, the width interval increases, as we are requiring more confidence with the same information (there is no new sample). This means that, to be more confident, the only way is to include more values in the interval.

Step-by-step explanation:

We have to calculate a 99% confidence interval for the proportion.

The sample proportion is p=0.8241.

p=X/n=581/705=0.8241

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.8241*0.1759}{705}}\\\\\\ \sigma_p=\sqrt{0.000206}=0.0143

The critical z-value for a 99% confidence interval is z=2.5758.

The margin of error (MOE) can be calculated as:

MOE=z\cdot \sigma_p=2.5758 \cdot 0.0143=0.0369

Then, the lower and upper bounds of the confidence interval are:

LL=p-z \cdot \sigma_p = 0.8241-0.0369=0.7872\\\\UL=p+z \cdot \sigma_p = 0.8241+0.0369=0.8610

The 99% confidence interval for the population proportion is (0.7872, 0.8610).

We can conclude that there is, at least, 99% chances that the true proportion is higher than 0.7872. So there is at least 99% chances that the population proportion is higher than 0.75.

4 0
3 years ago
1/3h-4(2/3h-3)=2/3h-6
Likurg_2 [28]
H is 6. If you are not familiar with /3 you could time the whole equation by 3
6 0
3 years ago
Read 2 more answers
What is the slope of the line represented by<br><br> y= 12+ 1/2x ?
trasher [3.6K]

Answer:

1/2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
6(3 + 2) + (8 – 2 x 4) =
jeka94

Answer:

30

Step-by-step explanation:

First, solve inside the parentheses, then keep going from there.

6(3+2)+(8-2*4)\\6(5)+(8-8)\\30+(0)\\30

3 0
2 years ago
Read 2 more answers
A customer placed an order with a bakery for cupcakes. The baker has completed 37.5% of the order 81 cupcakes. How many cupcakes
Paul [167]

Answer:

The total number of cupcakes ordered=216

Step-by-step explanation:

The total number of cupcakes ordered that the baker completed can be expressed as;

C=P×t

where;

C=Total number of completed order of cupcakes

P=percentage of order completed

t=total number of ordered cupcakes

In our case;

C=81

P=37.5%

t=t

replacing in the above expression;

81=37.5%×t

(37.5/100)×t=81

t=81×100/37.5

t=216

The total number of cupcakes ordered=216

3 0
3 years ago
Other questions:
  • Select the correct answer. What is the range of this data? (3,3, 0, 8, 7, 10, 2, 6, 12, 0}
    15·1 answer
  • Need help...,.......
    14·1 answer
  • Rafael is going for a walk. he takes 3 hours to walk 7.5 miles. What is his speed
    6·2 answers
  • Use long division to write the fraction 2/9 as a decimal
    8·1 answer
  • PLEASE HELP, THE DEADLINE TO TURN THIS IS IN IS SOON!! explain your answer, thank you, thank you!
    9·1 answer
  • 5. For Which value of x is line L parallel to line m?
    8·1 answer
  • 2. You want to spin yellow. Which spinner should you spin? Explain,
    8·1 answer
  • Complete the following statement.
    11·2 answers
  • The product of a number and 7 is 6.
    8·1 answer
  • Ona took a random sample of 20 soccer teams across Europe. She tracked the average number of goals
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!