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earnstyle [38]
3 years ago
7

there are 7 math folders on a classroom shelf this is 1/3 of the total number of math folders in the classroom the total number

of math folders in the classroom is
Mathematics
2 answers:
andrew-mc [135]3 years ago
3 0
21 because 21 is 3 times 7.
Stella [2.4K]3 years ago
3 0
You have to multiply okay
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What does it mean to perform dilation transformation
dangina [55]

Answer:

A dilation transformation is by shrinking or expanding the image by a scale factor x. To perform a dilation multiply the coordinates by the scale factor number given.

Step-by-step explanation:


5 0
3 years ago
A line has a slope of -4 and passes through the point (0,5). Write the equation of this line in standard form. Be sure to expres
emmainna [20.7K]

Answer:

Final answer in standard form of the line is 4x+y=5.

Step-by-step explanation:

Given that slope of the lime m = -4

Now we need to find the equation of a line that has a slope of -4 and passes through the point (0,5). Write the equation of this line in standard form.

So plug the given slope m=-4 and the point (0,5) into point slope formula:

y-y_1=m\left(x-x_1\right)

y-5=-4\left(x-0\right)

y-5=-4\left(x\right)

y-5=-4x

y=-4x+5

4x+y=5

Hence final answer in standard form of the line is 4x+y=5.

5 0
3 years ago
Read 2 more answers
What is the value of c in the equation 2(x-3)+9=3(x+1)+x
lianna [129]

Answer:

x = 0  (I must assume you had a typo since c is not a variable in this equation!

Step-by-step explanation:

Solve for x:

2 (x - 3) + 9 = 3 (x + 1) + x

2 (x - 3) = 2 x - 6:

2 x - 6 + 9 = 3 (x + 1) + x

Grouping like terms, 2 x - 6 + 9 = 2 x + (-6 + 9):

2 x + (-6 + 9) = 3 (x + 1) + x

9 - 6 = 3:

2 x + 3 = 3 (x + 1) + x

3 (x + 1) = 3 x + 3:

2 x + 3 = 3 x + 3 + x

Grouping like terms, 3 x + x + 3 = (3 x + x) + 3:

2 x + 3 = (3 x + x) + 3

3 x + x = 4 x:

2 x + 3 = 4 x + 3

Subtract 4 x from both sides:

(2 x - 4 x) + 3 = (4 x - 4 x) + 3

2 x - 4 x = -2 x:

-2 x + 3 = (4 x - 4 x) + 3

4 x - 4 x = 0:

3 - 2 x = 3

Subtract 3 from both sides:

(3 - 3) - 2 x = 3 - 3

3 - 3 = 0:

-2 x = 3 - 3

3 - 3 = 0:

-2 x = 0

Divide both sides of -2 x = 0 by -2:

(-2 x)/(-2) = 0/(-2)

(-2)/(-2) = 1:

x = 0/(-2)

0/(-2) = 0:

Answer:  x = 0

8 0
3 years ago
Read 2 more answers
HELP ME DUE IN A FEW MIN
svlad2 [7]
The answer is C because there is an open circle(not including the number it's on) on the 60 mark and the arrow goes to the left, or to the lower numbers.
4 0
4 years ago
3k^2+12k-7kn-28n square meters and a length of 3k-7n meters.
melomori [17]

Step-by-step explanation:

here ! I used the formula area = length × width

and just some algrbric expressions solving

4 0
2 years ago
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