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Iteru [2.4K]
4 years ago
10

Olve each equation for the 1) -27 + m = 3m + 9

Mathematics
2 answers:
xxMikexx [17]4 years ago
7 0

-27 + m = 3m + 9

move +m to the other side

side changes from +m to -m

-27+m-m= 3m-m+9 ( combine like terms)

-27= 3m-m+9

-27= 2m+9

move +9 to the other side

-27-9= 2m+9-9

-27-9= 2m

-36=2m

divide both sides by 2 to get m by itself

-36/2= 2m/2

Cross out 2 and 2, divide by 2 and then becomes 1*1*m= m

divide -36/2 by dividing by 2

-36/2= -18

2/2= 1

m= -18

Check answer by using substitution method

-27 + m = 3m + 9

-27+-18= 3(-18)+9

-27-18= -54+9

-45= -45

Answer:

m= -18

bearhunter [10]4 years ago
4 0

Hey!

------------------------------------------------

Steps To Solve:

-27 + m = 3m + 9

~Subtract m to both sides

-27 + m - m = 3m + 9 - m

~Simplify

-27 = 2m + 9

~Subtract 9 to both sides

-27 - 9 = 2m + 9 - 9

~Simplify

-36 = 2m

~Divide 2 to both sides

-36/2 = 2m/2

~Simplify

-18 = m

------------------------------------------------

Answer:

m = -18

------------------------------------------------

Hope This Helped! Good Luck!

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12345 [234]

Answer:

1 1/8 cup of brown sugar.

Step-by-step explanation:

Here is the correct question: A recipe calls for 3/4 cup brown sugar for  each 2/3 cup white sugar. How many cups of  brown sugar per cup of white sugar is this?    

Given: 3/4 cup of brown sugar for each 2/3 cup of white sugar.

Finding requirement of brown sugar for 1 cup of white sugar.

∴ Each 2/3 cup of white sugar require 3/4 cup of brown sugar.    

Now, 1 cup of white sugar require brown sugar = \frac{\frac{3}{4} }{\frac{2}{3} } cups

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5 0
3 years ago
What expression is equivalent to x^2 - 49
Sati [7]

Answer:

(x + 7)(x - 7)

Step-by-step explanation:

We need to factor [ x² - 49 ]

The middle number is 0 and the last number is -49.

Factoring is when we fill in the blanks for [ (x + _)(x + _) ]

We need to know what goes in the blanks, we need to know:

  • two numbers that add to get 0
  • two number that multiplied together get -49

We can try 7 and -7.

7 + (-7) = 0

7 * (-7) = -49

This works, so fill in the blanks for the factor.

(x + 7)(x + (-7))

(x + 7)(x - 7)

Best of Luck!

7 0
3 years ago
Find the y value for the point that divides the line segment CD into a ratio of 4:1.
PIT_PIT [208]

Answer:

Y = 2

Step-by-step explanation:

For point (x1,y1) and (x2,y2) on coordinate plane if is divided in ratio of m:n.

Then point of division is given by

(n*x1+m*x2)/ m+n,  (n*y1+m*y2)/ m+n

________________________________

Given point

c = (9,6)

d = (5,1)

ratio = 4:1

using the above formula , point of division is

x= (1*9+4*5)/ 4+1                     y=  (1*6+4*1)/ 4+1

x= (9+20)/ 5                             y=  (6+4)/ 5

x= 29/ 5                                    y=  10/ 5 =2

Thus, answer is y = 2

7 0
3 years ago
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