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schepotkina [342]
3 years ago
14

This year, a gram planted 400,000 corn stalks.last year, the farm planted 275,650 corn stalks how many more corn stalks did the

farm plant this year than last year
Mathematics
1 answer:
In-s [12.5K]3 years ago
3 0
400000-275650=124350
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Please answer both please please I’ll give brainly
Vilka [71]

Answer:

4.  9  

5.    5x

Step-by-step explanation:

its an isocoles

7 0
2 years ago
Find the equation of the graphed line.
GrogVix [38]

Answer:

  a.  y = -1/2x - 2

Step-by-step explanation:

The correct answer choice can be determined by finding the slope of the line. The slope is the ratio of rise to run.

__

<h3>slope</h3>

The x-intercept is 4 units left of the y-axis. As the line "runs" those 4 units, it "rises" -2 units to intercept the y-axis at -2. The slope of the line is ...

  m = rise/run = -2/4 = -1/2

In the slope-intercept form of the equation of a line, the slope is the coefficient of x. This information is sufficient to let us choose the first answer choice.

__

<h3>equation</h3>

The slope-intercept equation is ...

  y = mx +b . . . . . . . slope m, y-intercept b

We know the slope is -1/2, and the y-intercept is where x=0, at y=-2. Then the equation is ...

  y = -1/2x -2 . . . . . matches choice A

_____

<em>Additional comment</em>

When answering multiple-choice questions, you only need to do enough work to tell which answers are <em>not</em> viable.

When we plot the points, we see that the line has negative slope. (eliminates choice C). The slope is shallow, rather than steep (the x-intercept is farther from the origin than the y-intercept), so the magnitude of the slope is less than 1 and choices B and D are eliminated.

8 0
2 years ago
Every month, a group of 46 students write essays in a class. Each student writes 2 essays, and each essay
Maru [420]

Answer:

92,000 words

Step-by-step explanation: 46 students write 2 essays

46 times 2= 92

92 times 1000 words per essay is 92,000 words

7 0
3 years ago
Read 2 more answers
A total of 1 232 students have taken a course in Spanish, 879 have taken a course in French, and 114 have taken a course in Russ
ElenaW [278]

Answer:

n(S\cap F \cap R)=7

Step-by-step explanation:

The Universal Set, n(U)=2092

n(S)=1232\\n(F)=879\\n(R)=114

n(S\cap R)=23\\n(S\cap F)=103\\n(F\cap R)=14

Let the number who take all three subjects, n(S\cap F \cap R)=x

Note that in the Venn Diagram, we have subtracted n(S\cap F \cap R)=x from each of the intersection of two sets.

The next step is to determine the number of students who study only each of the courses.

n(S\:only)=1232-[103-x+x+23-x]=1106+x\\n(F\: only)=879-[103-x+x+14-x]=762+x\\n(R\:only)=114-[23-x+x+14-x]=77+x

These values are substituted in the second Venn diagram

Adding up all the values

2092=[1106+x]+[103-x]+x+[23-x]+[762+x]+[14-x]+[77+x]

2092=2085+x

x=2092-2085

x=7

The number of students who have taken courses in all three subjects, n(S\cap F \cap R)=7

3 0
3 years ago
A survey of voters explored the relationship between the ages of voters and wether or not they support building skateboard ramps
Novosadov [1.4K]

Answer:

(a)12%

(b)20%

(c)49%

Step-by-step explanation:

(a)In the age group 58 and above:

  • Number in favor of building the skateboard ramps=6
  • Number opposed to building the skateboard ramps=44
  • Total = 50

Percentage of those in favor = \frac{6}{50}X100 =12\%

(b)In the age group 18-37

  • Number in favor of building the skateboard ramps=40
  • Number opposed to building the skateboard ramps=10
  • Total = 50

Percentage of those opposed to it = \frac{10}{50}X100 =20\%

(c)

  • Total Number of those in favor of building the skateboard ramps=73
  • Total Number opposed to building the skateboard ramps=77
  • Total = 150

Percentage of those in favour = \frac{73}{150}X100 =48.67 \approx 49\%

6 0
3 years ago
Read 2 more answers
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