Solve the equation 5m+4m=72

Answers

Answer 1

Answer: First of all we group our m's together.
So first add
5m + 4m = 9m

Now lets set up our equation again
9m = 72 .... divide both sides by 9 to get m alone
÷9 = ÷9
************ now m is alone on the left side and we solve on the right side.
m = 8

So your answer is
m = 8

Answer 2

Answer:

Hello my friend

9m=72

Divide both sides by 9 so you can find the value for m

9m/9=72/9

m=8

I hope that's help:)

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If there are 7 white t shirts on the shelve for every 3 purple shirts, how many white shirts are there if there are 40 purple and white

Answers

If there are 7 white t-shirts on the shelf for every 3 purple shirts, we can use this ratio to determine the number of white shirts if there are a total of 40 purple and white shirts.

To find the number of white shirts, we need to divide the total number of shirts by the sum of the parts in the ratio (7 + 3 = 10), and then multiply that result by the number of parts representing white shirts (7).

So, for every 10 shirts, 7 of them are white.

If there are a total of 40 purple and white shirts, we can set up a proportion:

7 white shirts / 10 total shirts = x white shirts / 40 total shirts.

To solve for x, we cross-multiply and solve the equation:

7 * 40 = 10 * x

280 = 10 * x

280 / 10 = x

28 = x

Therefore, there are 28 white shirts among the 40 purple and white shirts.

5
2. Expand the brackets and simplify:
a) X(2x + 3)

Answers

Answer:

2x^2 +3x

Step-by-step explanation:

X(2x + 3)

Distribute

2x*x + 3x

2x^2 +3x

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

Answers

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

Step 1:Simplify both sides of the equation

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

6x+3=2x+2+1

6x+3=(2x)+(2+1) -(Combine Like Terms)

6x+3=2x+3

Step 2: Subtract 2x from both sides

6x+3-2x=2x+3-2x

4x+3-3=3-3

4x÷4=0÷4

x=0

Find the measure of

Answers

Answer:

129

Step-by-step explanation:

If you are finding the answer of the hole thing you need to add 49+90

A rectangular yard has area 96 square feet. If the width of the yard is 4 ft less than length, what is the perimeter,in feet, of the yard?

Answers

Area of the rectangular yard = 96 square feet
Let us assume the length of the yard = x feet
Width of the yard = x - 4 feet
Then
Area of the yard = length * width
96 = x(x - 4)
96 = x^2 - 4x
x^2 - 4x - 96 = 0
x^2 - 12x + 8x - 96 = 0
x(x - 12) +8(x - 12) = 0
(x - 12)(x + 8) = 0
As the value of length cannot be negative so
x - 12 = 0
x = 12
So
Length of the yard = 12 feet
Width of the yard = x - 4 feet
   = 12 - 4 feet
   = 8 feet
Then
Perimeter of the yard = 2 (length + width)
   = 2(12 + 8)
   = 2 * 20 feet
   = 40 feet.
So the perimeter of the yard is 40 feet.

Expand: (b + 2)(b - 4)

Answers

(b+2)(b-4)
b x b = b^2
b x 2 = 2b
b x -4= -4b
2 x -4=-8

b^2+2b-4b-8= b^2-2b-8

i believe the answer is b^2-2b-8

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