I neeed help with middle school math

Answer:

its scale factor is 3

Step-by-step explanation:

plz mark brainliest

To map the dilated image back  onto the original figure, the scale factor needed is 7.

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

Dilation is the increase or decrease in the size of a figure by a factor.

If a figure is dilated from the origin by a scale factor of one seventh, it is given by:

(x, y) ⇒ [(1/7)x, (1/7)y]

To map the dilated image back  onto the original figure, the scale factor needed is 7. Hence:

[(1/7)x, (1/7)y] ⇒ (x, y)

Find out more at: https://brainly.com/question/11707700

Answer:

c=10,3

D=0,3

E=0,6

F=10,6

pls give brainliest

Answer:

ghtfgngngnfgjyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

Step-by-step explanation:

ngfngfnfgnfgnfg

Answer:

46 of the sixth graders have green eyes.

Step-by-step explanation:

This question is asking what number of the 230 sixth graders have green eyes.

We know that one out of every five of them, or 20%, have green eyes.

1/5 = 0.2

If we multiply 0.2 by the total number of sixth graders, that leaves us with 46, meaning that 46/230 sixth graders have green eyes.

I hope this helps!

Answer:

$153

Step-by-step explanation:

323/17=19

19x7=153

Answer:

50%

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

hope it helpp

Answer:

The new cost is $73.95

The discount was $13. 05

Step-by-step explanation:

Turn the % into a decimal so it would be 0.15.

Then multiply it to the total, 87 x 0.15 = 13. 05

so the discount subtracted $13.05 off of the original price.

87 - 13. 05 = 73.95

Answer:

3 x 3/4 = 9/4 = 2 1/4

7 x 3/8 =21/8 = 2 5/8

4 x 1/5 = 4/5

5x 2/3 = 10/3 = 3 1/3

Step-by-step explanation:

ANSWER:

3 x 3/4 = 9/4 = 2 1/4

7 x 3/8 = 21/8 = 2 5/8

4 x 1/5 = 4/5

5 x 2/3 = 10/3 = 3 1/3

Step-by-step explanation:

Answer:

57.926%

Step-by-step explanation:

Calculation for the probability that it is less than

16.4 inches long

Using this formula

z = (X - μ) / σ

Where,

X represent Date=16.4

μ represent Mean=16.2

σ represent Standard deviation=0.9 inches

Let plug in the formula

z = (16.4 - 16.2) /0.9 inches

z=0.2/0.9 inches

z = 0.2

Using Z-score table to find the area of 0.2

z=0.57926*100

z=57.926%

Therefore the probability that it is less than

16.4 inches long is 57.926%

Answer: x =7/2 or r = 7/2 so this means there the same.

Step-by-step explanation:

_________

[tex] \: [/tex]

4 × r = 14

4r = 14

r = 14/4

r = 7/2

r = 3½ or 3,5

Answer:

y=2/3  x=-5/3

Step-by-step explanation:

Answer : 8*d -4. and. 8*d -4 + 4

Answer:

4(2d-1) and 2(4d-2)

Step-by-step explanation:

Answer:

5h...................

Answer:

y=1/2x-2

Step-by-step explanation:

perpendicular lines have a neg. reciprocal for the slope.

for example:

in this equation y=-2x+1

-2 is the slope and the negative reciprocal would be 1/2

hence, the slop of our new line is 1/2

y=1/2x+b

we can substitute the coordinates given for x and y:

2=1/2(8)+b

2=4+b

-2=b

hence the new equation is y=1/2x-2

Answer:

It's %9.0.

Step-by-step explanation:

Answer:

a=4

b=6

perimiter=38

Step-by-step explanation:

you take the side lengths by it and you can subtract and stuff then you add them all up to find the perimeter

Answer:

3-9=6 and 6-10=4

Step-by-step explanation

part of b is cut by 3 as u can see above and 9 is at the bottom on which the part is cut, as for the other one 10 is the main line and is cut by 6. so u just have minus the main line aka the long line by a parallel line next to it

Answer:                                                                                                                                      

Step-by-step explanation:

Answer:

m = 1

Step-by-step explanation:

slope = (y₂-y₁)/(x₂-x₁)

m = (4 - -1) / 1 - -4) = 5/5 = 1

Answer:5

Step-by-step explanation:

Answer:

Inequality- m>26/3

Interval- (26/3,∞)

Step-by-step explanation:

I hope that this helps..sorry it took a minute

Answer:

a=4

b=-6

Step-by-step explanation:

3(2ax-10)=24x+5b

6ax - 30 = 24x + 5b

6a = 24

a = 4

5b = -30

b = -6

check: 3(2*4*x - 10) = 24x - 30 = 24x + 5 * (-6) = 24x - 30

Answer:

use cross multiplication to solve

4*7 = 2*x (multiply)

28 = 2x (divide both sides by 2 to isolate x )

x = 14 (your answer)

Step-by-step explanation:

I hope this helped :)

Answer:

Step-by-step explanation:

Or,2×x=7×4

Or,2x=28

Or,x=14

Answer:

H) 24

Step-by-step explanation:

24 is the only number that is divisible by 3.

CHECK:

3 x 8 : 4 x 8

24:32✔

(You can try dividing '3' by the other numbers to also check your answer)

Hope this helped ^^

9514 1404 393

Answer:

  1/2

Step-by-step explanation:

The slope can be found from the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (5-3.5)/(6 -3) = 1.5/3 . . . . from the marked points

  m = 1/2

The slope of the line through J and K is 1/2.

Answer: the answer is 1

Step-by-step explanation:

Answer: The GCF of 17 and 8 is 1

Answer:

4 hours

Step-by-step explanation:

Answer:

the answer is 4 HOURS

Step-by-step explanation:

i took the exam

Answer:

x=16

Step-by-step explanation:

the remaining angle for thw triangle is found by subtracting the already shown angles from 180 (the angle some of a triangle) which happens to be 96 to get 84 but now you need to subtract 84 from 180 to find the angle on the other side of line because lines have a total angle measurement of 180 but we already kbow what this get's us because it's 96 now we devide 96 by 6 to get 16 our answer.