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.

Answer:

there r algebra calulators you could use

Step-by-step explanation:

Answer:

[tex]2a+3[/tex] books

Step-by-step explanation:

Sonya -> [tex]a[/tex] books

Nick -> [tex](a+3)[/tex] books

Total: [tex]a+(a+3)=a+a+3=2a+3[/tex]

Answer:

x = -10.6667

Step-by-step explanation:

Solve for x:

4.5 (8 - x) + 36 = 100 - 2.5 (3 x + 24)

4.5 (8 - x) = 36 - 4.5 x:

36 - 4.5 x + 36 = 100 - 2.5 (3 x + 24)

Grouping like terms, -4.5 x + 36 + 36 = (36 + 36) - 4.5 x:

(36 + 36) - 4.5 x = 100 - 2.5 (3 x + 24)

36 + 36 = 72:

72 - 4.5 x = 100 - 2.5 (3 x + 24)

-2.5 (3 x + 24) = -7.5 x - 60:

72 - 4.5 x = -7.5 x - 60 + 100

Grouping like terms, -7.5 x - 60 + 100 = (100 - 60) - 7.5 x:

72 - 4.5 x = (100 - 60) - 7.5 x

100 - 60 = 40:

72 - 4.5 x = 40 - 7.5 x

Add 7.5 x to both sides:

7.5 x - 4.5 x + 72 = (7.5 x - 7.5 x) + 40

7.5 x - 7.5 x = 0:

7.5 x - 4.5 x + 72 = 40

Grouping like terms, 7.5 x - 4.5 x + 72 = (-4.5 x + 7.5 x) + 72:

(-4.5 x + 7.5 x) + 72 = 40

7.5 x - 4.5 x = 3 x:

3 x + 72 = 40

Subtract 72 from both sides:

3 x + (72 - 72) = 40 - 72

72 - 72 = 0:

3 x = 40 - 72

40 - 72 = -32:

3 x = -32

Divide both sides of 3 x = -32 by 3:

(3 x)/3 = (-32)/3

3/3 = 1:

x = (-32)/3

(-32)/3 = -10.6667:

Answer: x = -10.6667

Answer:

B

Step-by-step explanation:

-2x + y - 4 - - 3x - - 2y                       That distribuates the minus sign in front of the second set of brackets.

-2x + y - 4 + 3x + 2y

x + 3y - 4

That looks like B

Answer:

x= 3/2 or 1.5

Step-by-step explanation:

First of all, you can take out the parenthesis because 8x is subtracting 2x-3.

8x-2x-3=12

6x-3=12

  +3  +3

6x= 15

6x/6= 15/6

x= 3/2 or 1.5

Hope this helps!

Answer:

try drawing a circle or an oval

Step-by-step explanation:

There are no edges or corners to a circle, ovals, or semicircles, making it a spherical form. Shapes may be categorized and sorted using these qualities as well as size.

A group of points that are all at the same distance from a fixed point is how it is characterized (called the center of a circle).

Ovals, semicircles, circles, and other closed forms all lack straight lines. Having one curved edge and one straight edge, a semicircle is a closed form.

An oval is a circle that has been flattened such that it resembles an egg or an ellipse: a mirror with an oval shape; a face with an oval shape. Ellipsoidal comparison.

By dividing a circle into two equal halves along the diameter line, a semicircle is created. There is just one line of symmetry in the semicircle, and that is the reflection symmetry. A half-disk is another name for the semicircle.

Thus, the flat shape that has no straight will be ovals, semicircles, and circles.

Learn more about circle here:

brainly.com/question/11833983

#SPJ2

Answer:

-6

Step-by-step explanation:

Cuz it’s negative?

Answer:

-6 I think

Negative numbers are not whole numbers.

The first term in our sequence = 2

The common ratio = 6 / 2 = 3

n = the term we want to find.

2 * (3)^(n - 1)

2 * (3)^(20 - 1)

2 * (3)^(19)

2 * 1162261467

2324522934 is the 20th number in the series.

Answer:

two angles that are on the same side of the transversal and on the interior of (between) the two lines.

Step-by-step explanation:

it is equal to 60 using pemdas

Answer:

x = 95 degrees

Step-by-step explanation:

if you add the two angles that are right across each other, it should equal 180 degrees, so you subtract 180 and 85 to get 95 degrees

Answer:

false

plz tell me if im wrong i hope i helped

Answer:

yes it is because it can be written in fraction form

Answer:

octagon

Hope it helps

I am sure about this

Answer:

A. x = 1/2at²

Step-by-step explanation:

Among the equations, the equation that is dimensionally consistent is x=1/2at² where;

x is the distance in meters (dimension is length (L))

a is the acceleration in m/s² (dimension is L/T²)

t is the time in seconds (s) (dimension of time is T)

Substituting the dimensions into the formula to check if we are going to arrive at the dimension for distance;

1/2at² = 1/2(L/T²)T²

= 1/2× L/T² × T²

= 1/2 × L

Since L which is the resulting dimension is the dimension for distance (x), this means that the equation x = 1/2at² is dimensionally consistent.

Answer:

  They are not commutative, because f(g(x)) and g(f(x) are not equal.

Step-by-step explanation:

In order for the composition of the functions to be commutative, we must have ...

  f(g(x)) ≡ g(f(x))

for all values of x.

Here, we have f(g(x)) = 1 and g(f(x)) = 2. f(g(x)) and g(f(x)) are not equal, so the composition of the functions is not commutative.

Answer:

D. edg 2022

Step-by-step explanation:

Answer:

there will be 259 elk

Step-by-step explanation:

Answer:

probably 130

Step-by-step explanation:

well your gonna need to add both numbers together to see the out come of the answer

Answer: 155

Step-by-step explanation:

Answer:

If the question is how much she would have in each account the value would be that two would have $9,333 and one would have to be $9,334

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

I think 1st option is ✔️ correct

Answer:

ACE

Step-by-step explanation:

Answer:

A. 54 miles B. 27 miles for the bikeathon