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alexdok [17]
3 years ago
10

Solve the equation for y. 3.14= 7x-2y

Mathematics
1 answer:
Minchanka [31]3 years ago
6 0
Swap the sides of the equation

3.14 = 7x- 2y
turns into
7x-2y=3.14

Multiply both sides of the equation by 100

700x-200y=314

Divide both sides of the equation by 2
350 x -100y=157

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13.2)
Neko [114]

Answer:

390

Step-by-step explanation:

4 0
4 years ago
Simplify the expression: (7 times 18 plus 45) divided by 6
neonofarm [45]

Answer:

28.5  PLEASE GIVE ME BRAINLIEST

Step-by-step explanation:

(7 x 18 + 45) ÷ 6

171 ÷ 6 = 28.5

8 0
3 years ago
Find the scale factor.
aivan3 [116]

The scale factor is 1.5. The dilation rule is : (x,y)-------(.15x,1.5y)

Step-by-step explanation:

Dilation is a transformation that maps an object to an image of the same shape as the original object to form a different size image.When a larger image is produced it's called an enlargement where as when a small image is produced, it's called a reduction.

The rule of dilation, with center as the origin follows;

(x,y)------(sx,sy) where s is the scale factor. To find the scale factor, select one of the vertices of the object and of the image at divide the coordinate of image with that of object.

Taking O(2,16) and O'(3,24),  the scale factor will be;

s*2=3

2s=3

s=3/2 =1.5

or

s*16=24

16s=24

s=24/16=3/2=1.5

The scale factor is 1.5, hence the dilation rule is;

(x,y)-------(.15x,1.5y)

Learn More

Dilation:brainly.com/question/10945890

Keywords: dilation, vertices, origin, scale factor, translation

#LearnwithBrainly

5 0
4 years ago
M(5, 7) is the mid-point of the l.ine segment joining A (3,4) to B. Find the coordinates of B.
Nina [5.8K]

Answer:

B(7,10)

Step-by-step explanation:

M(5,7)=(x ,y)\\A(3,4)=(x_1,y_1)\\B(x_2,y_2)\\\\Endpoint ;\\x = \frac{x_1+x_2}{2}\\ \\5 = \frac{3+x_2}{2}\\ Cross\:Multiply\\5\times 2 =3+x_2\\10=3+x_2\\10-3 =x_2\\7=x_2\\\\\\y = \frac{y_1+y_2}{2} \\\\7 = \frac{4+y_2}{2}\\ Cross\:Multiply\\7\times 2 =4+y_2\\14 =4+y_2\\14-4 =y_2\\10 =y_2\\\\\\B(7,10)

5 0
4 years ago
A certain triangle has a 30° angle and a 60° angle. Which must be a true
sleet_krkn [62]

Answer:

Step-by-step explanation:

7 0
2 years ago
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