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
lana66690 [7]
3 years ago
11

An average person in the country needs 2,450 kilocalories(kcal) / day of food to meet their full nutritional needs. The average

number of kcal per hectare(ha) produced from the available food in the country is 15,737,000 kcal/ha
CALCULATE the amount of land that would be needed to produce enough kilocalories to feed a person for a year in this country. Show your work
Mathematics
1 answer:
OlgaM077 [116]3 years ago
7 0

Answer:

The answer to your question is 0.057 ha

Step-by-step explanation:

Data

Kilocalories needed for a person per day = 2450

Kilocalories produced per hectare = 15737000

Process

1.- Calculate the number of kcal needed per a person for a year

                     2450 kcal ----------------- 1 day

                         x            ----------------- 365 days

                              x = (365 x 2450) / 1

                             x = 894250 kcal

2.- Calculate the amount of land needed

                    15737000 kcal ------------- 1 ha

                        894250 kcal ------------  x

                          x = (894250 x 1) / 15737000

                          x = 0.057 ha

You might be interested in
Haylee opened her savings account with $440 in week 1. each week after this, she deposited $65 in her account. how much money wi
andrew-mc [135]
The answer is 2000 dollars
5 0
3 years ago
Read 2 more answers
If the parallel sides of a trapezoid are contained by the lines and , find the equation of the line that contains the midsegment
Fittoniya [83]

Answer:

Equation of midsegment line: y = (-1/4)x + 2.

Step-by-step explanation:

If the parallel sides of a trapezoid are contained by the lines:-

y = (-1/4)x +5 and y = (-1/4)x - 1

Midsegment of any trapezoid is the line segment

1. that is parallel to pair of parallel side of trapezoid and

2. that passes through the middle of the trapezoid and cuts the other two sides into equal-half.

It means the midsegment would have same slope as the parallel lines and y-intercept would be in the middle of intercepts of parallel lines.

So y = mx + b

where m = -1/4 and b = (5 - 1)/2 = 4/2 = 2.

Hence, the equation of midsegment would be y = (-1/4)x + 2.

6 0
3 years ago
A rectangle is a _____.<br><br> square<br> parallelogram<br> quadrilateral<br> rhombus
Nadusha1986 [10]
Parallelogram as well as a quadrilateral with pairs of equal and parallel opposite sides
3 0
3 years ago
If possible help me in this. I need to find the two odd numbers...​
Lelechka [254]

Part (a)

Consecutive odd integers are integers that odd and they follow one right after another. If x is odd, then x+2 is the next odd integer

For example, if x = 7, then x+2 = 9 is right after.

<h3>Answer:  x+2</h3>

========================================================

Part (b)

The consecutive odd integers we're dealing with are x and x+2.

Their squares are x^2 and (x+2)^2, and these squares add to 394.

<h3>Answer: x^2 + (x+2)^2 = 394</h3>

========================================================

Part (c)

We'll solve the equation we just set up.

x^2 + (x+2)^2 = 394

x^2 + x^2 + 4x + 4 = 394

2x^2+4x+4-394 = 0

2x^2+4x-390 = 0

2(x^2 + 2x - 195) = 0

x^2 + 2x - 195 = 0

You could factor this, but the quadratic formula avoids trial and error.

Use a = 1, b = 2, c = -195 in the quadratic formula.

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(2)\pm\sqrt{(2)^2-4(1)(-195)}}{2(1)}\\\\x = \frac{-2\pm\sqrt{784}}{2}\\\\x = \frac{-2\pm28}{2}\\\\x = \frac{-2+28}{2} \ \text{ or } \ x = \frac{-2-28}{2}\\\\x = \frac{26}{2} \ \text{ or } \ x = \frac{-30}{2}\\\\x = 13 \ \text{ or } \ x = -15\\\\

If x = 13, then x+2 = 13+2 = 15

Then note how x^2 + (x+2)^2 = 13^2 + 15^2 = 169 + 225 = 394

Or we could have x = -15 which leads to x+2 = -15+2 = -13

So, x^2 + (x+2)^2 = (-15)^2 + (-13)^2 = 225 + 169 = 394

We get the same thing either way.

<h3>Answer: Either 13, 15  or  -15, -13</h3>
4 0
3 years ago
Solve the inequality below for x, where r &gt; 0
Shkiper50 [21]
Please include the inequality
6 0
3 years ago
Other questions:
  • Two non congruent triangles, each with side 6cm and angle measuring 40 degrees
    10·1 answer
  • After Halloween, a variety store had some costumes regularly priced at $20.50 on sale for 20% off the regular price. A few weeks
    8·1 answer
  • Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. The arena want
    6·2 answers
  • What is m∠DHG? Enter your answer in the box.
    6·2 answers
  • Simplify. could i get an explanation too? PLEASE HELP. DUE SOON
    5·1 answer
  • Find the circumference of the pizza to the nearest hundredth.
    5·1 answer
  • Helppp me pleaseeeeeee
    12·1 answer
  • What is the GCF of 100 and 20​
    9·2 answers
  • Please help what is the answer its a math question find the lcd!!!
    11·1 answer
  • Joshua is playing a trivia game. He scored a total of 1,250 points. He received 50 points for each correct question and lost 25
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!