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Alex787 [66]
3 years ago
13

Suppose you got 3 out every 4 questions correct on your homework. How many total questions were on the homework if you got 12 qu

estions correct?
Mathematics
1 answer:
Andrej [43]3 years ago
5 0

Answer:

9

Step-by-step explanation:

there's 12 questions

divided 12 by 4 because its every for questions

3 parts every third question is wrong

so 3 wrong = 9

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What are the coordinates of the image of vertex G after a reflection across the line y = x?​
Yuliya22 [10]

Answer:

The coordinates of the image of vertex G are (-5, 4)

Step-by-step explanation:

Let us revise some cases of reflection

  • If the point (x, y) reflected across the x-axis , then its image is (x, -y)
  • If the point (x, y) reflected across the y-axis , then its image is (-x, y)
  • If the point (x, y) reflected across the line y = x , then its image is (y, x)
  • If the point (x, y) reflected across the line y = -x , then its image is (-y, -x)

From the given figure

∵ The line of the reflection is y = x

→ That means we will switch the coordinates of the point to find its image

∵ The coordinates of vertex G are (4, -5)

∴ The x-coordinate = 4 and the y-coordinate = -5

→ Switch the two coordinates

∴ The coordinates of its image G' are (-5, 4)

∴ The coordinates of the image of vertex G are (-5, 4)

7 0
3 years ago
Solve ax + b = cx + d for x.
romanna [79]

Answer: X = (d-b) / (a-c)

This way this worded is weird but I think I got it

Step-by-step explanation:

Subtract B from both sides

ax = cx +d -b

Then subtract CX from both sides

ax -cx =d-b

Distributive Property

x(a-c) =d-b

Divide both sides by a-c

X = (d-b) / (a-c)

6 0
3 years ago
2 1/5 times 3 1/8<br><br> Hhahababahwhvwhwvabwbbwvabahwb
Radda [10]

Answer:

2 1/5 times 3 .18 = 6.875

4 0
3 years ago
Read 2 more answers
Find the perimeter of the colored part of the figure. The figure is composed of small squares with side-length 1 unit and curves
harina [27]

Answer:

16.56 in

Step-by-step explanation:

4 sides of the squares are exposed

The radius of each semicircle is 1 since they are against 2 squares.

2pi*r=circumfrence

2pi*1=6.28

6.28/2=3.14 because it's a semicircle

3.14*4=12.56 because there are 4 equal semicircles

12.56+4=16.56

4 0
3 years ago
-½(x + 1¼) = - 3 + ¼x <br> Solve for x
crimeas [40]

Answer:

x = (23 + √ 497 / 8) ,  (23 − √ 497  /8)

x=5.66168710

Step-by-step explanation:

im too lazy. use math-way

6 0
3 years ago
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