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
kodGreya [7K]
3 years ago
9

In 1970, a farmer using a two-row combine with a corn head could easily harvest 0.75 ha (1.85 acres) per hour and a typical corn

yield was 5000 kg/ha (80 bu/acre). Before 1940, most corn was harvested by hand and a skilled person could harvest 250 kg/h (10 bu/h). Calculate the productivity ratio.
Mathematics
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

The value is w = 6.7 \%

Step-by-step explanation:

Generally the productivity rate is mathematically represented as

P_r =  K  * Z

Here K is the ha the farmer could harvest in an hour and Z is a typical yield of corn in kg/ha

Now considering 1970

The productivity rate is

P_r =  0.75   *5000

=> P_r =  3750 \  kg/h

Now considering 1940

The productivity rate is given as P_R =  250 \ kg/h

Generally the productivity ratio is mathematically ration is mathematically represented as

w =  \frac{P_R}{P_r}  * 100

=> w =  \frac{250}{3750}  * 100

=> w = 6.7 \%

You might be interested in
The function a(1) =1/2I^2 describes the area of an isosceles right triangle with leg I. Make a table of values for I=1,2,3 and 4
prohojiy [21]

Functions can be represented using equations, graphs and tables.

The function is given as:

a(l) = \frac 12 l^2

When l = 1, we have:

a(1) = \frac 12 \times 1^2

a(1) = 0.5

When l = 2, we have:

a(2) = \frac 12 \times 2^2

a(2) = 2.0

When l = 3, we have:

a(3) = \frac 12 \times 3^2

a(3) = 4.5

When l = 4, we have:

a(4) = \frac 12 \times 4^2

a(4) = 8.0

Represent the above results as a table, we have:

<u>l          a(l)</u>

1          0.5

2         2.0

3          4.5

4          8.0

Read more about tables and functions at:

brainly.com/question/13136492

8 0
2 years ago
If you had 11 dollars and spent 7 what fraction of the money did you spend
tatyana61 [14]

Answer:

7/11

Step-by-step explanation:

3 0
2 years ago
Without graphing, tell whether the point (10, 37) is on the graph of y = 3x + 7.
slava [35]

Answer: YES

Plug in the numbers in your head.

y=3(10)+7

y=30+7

y=37 which is the y intercept

7 0
3 years ago
Ellla and some friends are going to a movie. Each movie ticket cost 5 dollars. Create an a equation that shows the relationship
ra1l [238]

Answer:

5n=c

Step-by-step explanation:

5 0
2 years ago
What is the measure of an angle that is complementary to a 47° angle?
77julia77 [94]
Complementary angles add up to 90 so
angle + 47 = 90
angle = 90 - 47
angle = 43 so A
6 0
2 years ago
Read 2 more answers
Other questions:
  • 4. An airplane at T(80,20) needs to fly to both U(20,60) and V(110,85). What is the shortest possible distance for the trip?
    8·1 answer
  • Please provide the answer for me if anyone is per if anyone provides the answer I will answer to one of their questions thank yo
    5·1 answer
  • Data plays a crucial role in decision-making because it can reveal relationships between different quantities we can often use l
    12·2 answers
  • Round 983.625 ; hundredths
    14·1 answer
  • The area of a rectangular classroom is given by the trinomial a - 4a - 21. The length of the rectangle is a+3. What is the expre
    7·1 answer
  • I NEED HELP ASAP
    6·1 answer
  • A random sample of students were asked whether they prefer milk juice or water is it results are summarized in the table.
    14·1 answer
  • HELP ME PLEAEEEE .HOW TO SOLVE IT
    11·1 answer
  • Pls help. I will mark BRAINLIEST ​
    13·1 answer
  • Is there a dilation the Maps shape lll onto shape ll if so what is the scale factor and is it in enlargement or reduction?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!