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
Firlakuza [10]
3 years ago
7

Any help would be great

Mathematics
2 answers:
Fofino [41]3 years ago
5 0

Answer:

63

Step-by-step explanation: The ratio from planet A to B is 100 to 3. If an elephant weight 2100 is planet a, then we are multiplying 21 to hundred. Whatever you do on the left side you have to do it on the right side and if you multiply 21 and 3 on the right side then you get 63.

Paul [167]3 years ago
3 0

Answer:

63 pounds

Step-by-step explanation:

<em>The ratio for Planet A to Planet B is </em>

100 : 3

<u><em>Creating a proportionality with the unknown as x</em></u>

=> \frac{100}{3} = \frac{2100}{x}

Isolating x would give

x = \frac{2100 * 3}{100}

x = 21 × 3

x = 63 pounds

You might be interested in
Which of the following best describes perpendicular lines
Usimov [2.4K]

Answer:

B.

Step-by-step explanation:

Perpendicular lines always intercept at a right angle (90 degrees).

8 0
2 years ago
Read 2 more answers
For f(x)=2x + 1 and g(x)= x^2 - 7, find (f + g)(x)
UkoKoshka [18]
The answer to the question

8 0
3 years ago
Read 2 more answers
Jason's dad gave him a budget of $150 to spend on lacrosse equipment. How much will Jason have left over if he buys a helmet for
Yanka [14]
The answer is 2.99 explanation is that I used my calculator lol
7 0
3 years ago
Read 2 more answers
!!Help Please!!<br> Find cos 0 20 16 12
statuscvo [17]

Answer:

the answer is 58 degrees (rounded) I have done a step by step explanation below.

Step-by-step explanation:

hope this helps...

8 0
3 years ago
A Gallup Poll used telephone interviews to survey a sample of 1030 U.S. residents over the age of 18 regarding their use of cred
Vlada [557]

Answer:

The 95% margin of error for this estimate is 0.0274 = 2.74 percentage points.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

72% of Americans said that they had at least one credit card

This means that p = 0.72

Give the 95% margin of error for this estimate.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.96\sqrt{\frac{0.72*0.28)}{1030}} = 0.0274

The 95% margin of error for this estimate is 0.0274 = 2.74 percentage points.

7 0
3 years ago
Other questions:
  • A botanist created a linear model to predict plant height from soil acidity (pH level) for a certain type of plant. The slope of
    12·1 answer
  • The table below summarizes the number of children per household for a sample of 29 families
    7·1 answer
  • What is the greatest whole number that rounds to 621,860
    11·1 answer
  • there are 30 students in Sam's history class. out of that number, 18 are girls. If one student is absent, what is the probabilit
    7·2 answers
  • 24 students have turned in their permission slips so far. This is 80% in the class. How many students are in the class.
    9·1 answer
  • How do you write 1,294,849,526,195,970,000,000 in scientific notation
    6·2 answers
  • Write an exponential function in the form y=ab^x that goes through points (0,12) and (3,6144)
    10·1 answer
  • I give ten points and brainliest if you say hi
    9·2 answers
  • What is the reciprocal of 1/x^3
    8·1 answer
  • Can someone help will mark brainlist
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!