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elena55 [62]
4 years ago
14

How do you do unknown area problems on the coordinate plane

Mathematics
1 answer:
kirill115 [55]4 years ago
4 0
It's not any different from a regular unknown area problem, my friend.

It all depends on the figure, but let's take a square in this example.

You simply count up the units, and multiply length by width.
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Write a word problem for this inequality <br> 72-12a&lt;24
dusya [7]
Think of absolute value and inverse operation, +72 to 72 and 24
5 0
3 years ago
A wholesaler requires a minimum of 4 items in each order from its retail customers. The manager of one retail store is consideri
Nataliya [291]

Answer:

  • It is the last graph: solid line, shaded area over the line x = 2 - x/2

Explanation:

1) <u>Set the algebraigic expression that represents the combinations of sofa and pillow orders:</u>

  • Number of sofas: x (given)
  • Number of pillows: 2y (given, since they come in pairs)
  • Number of items = number of sofas + number of pillows = x + 2y
  • Minimum of 4 items in each order (given) ⇒ x + 2y ≥ 4

<u>2) Predict the graph of the inequality x + 2y ≥ 4</u>

  • The border line is the equation x + 2y = 4
  • You can choose two points to draw a line
  • Choose the axis-intercepst:

        x = 0 ⇒ 2y = 4 ⇒ y =4/2 ⇒ y = 2 ⇒ point (0,2)

        y = 0 ⇒ x = 4 ⇒ point (4,0)

        Then the lines goes through (0,2) and (4,0) ... [the four graphs meet this]

  • The shading area is above the line because when you solve for y you get y ≥   2 - x/2, and the line is included because the "equal to" part of the symbol (≥ means greater than or equal to).

  •  To state that the line is included the graph uses a continous line instead of a dotted one.

<u>3) Conclusion:</u>

That means that the correct graph is the last one: solid line, shaded area over the line y = 2 - x/2.

Note: a more detailed graph would include the fact that the items cannot be negative, i.e. x ≥ 0 and y ≥ 0, which would result in that the shaded area would be on the first quadrant.

   

5 0
3 years ago
Read 2 more answers
Ax-bx+y=z the formula that could be used to find x
Illusion [34]

ax-bx+y=z the formula that could be used to find x

Answer:

<h2>x=z−y/a−b</h2>

5 0
3 years ago
Read 2 more answers
find 44% of 8.79. user: find 8% of 2.36. user: darren teaches a class of 25 students. he assigns homework 3 times a week, and ea
Andrews [41]
44% of 8.79 = 
0.44 (8.79) = 3.87 (thats rounded) 

8% of 2.36 =
0.08 (2.36) = 0.19 (rounded)

25 students, homework 3 times per week, 12 problems each assignment 
3(12) = 36 problems per student...36(25) = 900 problems for 25 students.
ur answer is 900

7 0
3 years ago
Neil has 3 partially full cans of white paint. They contain 1/3 of a gallon and 1/5 and 1/2 of a gallon of paint. About how much
allsm [11]

Answer:

1¹/₃₀

Step-by-step explanation:

The 3 gallons were partially full

They contain 1/3 of a gallon and 1/5 and 1/2 of a gallon of paint.

the first is 1/3 of the gallon

the second is 1/5 of galloon

the third is 1/2 of gallon adding them together

1/3 +1/5 +1/2 = (10+6+15)/30 = 31/30 = 1¹/₃₀

3 0
3 years ago
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