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Setler [38]
3 years ago
7

Subtract the sum of 5/9 and -2/9 from the sum of 7/12 and -5/12​

Mathematics
2 answers:
Firdavs [7]3 years ago
7 0

[\frac{7}{12}  + ( -  \frac{5}{12} )] -[ \frac{5}{9}   + ( -  \frac{2}{9} )] \\  \\  =   [ \frac{7}{12}  -  \frac{5}{12} ] - [ \frac{5}{9}  -  \frac{2}{9} ] \\  \\  = [  \frac{7 - 5}{12} ] -  [  \frac{5 - 2}{9} ] \\  \\  =  \frac{2}{12}  -  \frac{3}{9}  \\  \\  =  \cancel \frac{2}{12}  -  \cancel \frac{3}{9}  \\  \\  =  \frac{1}{6}  -  \frac{1}{3}  \\  \\  =  \frac{1 - 2}{6}  \\  \\  =  - \frac{1}{6}

<h3>Hope This Helps You ❤️</h3>
Inessa05 [86]3 years ago
7 0

Answer:

         \frac{-1}{6}

Step-by-step explanation:

Sum \ of \ \ \frac{5}{9} \  and \ \frac{-2}{9} =\frac{5}{9} + \frac{-2}{9} = \frac{5-2}{9} = \frac {3}{9} = \frac{1}{3}

Sum \ of \  \frac{7}{12} \ and \ \frac{-5}{12} = \frac{7}{12} \ + \ \frac{-5}{12} = \frac{7-5}{12} = \frac{2}{12} = \frac{1}{6}

subtract \ first \ from \ second = \frac{1}{6} - \frac{1}{3} = \frac{1 -2}{6} = \frac{-1}{6}

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What is n-9 divided by 10=-2
DerKrebs [107]

The value of n is 11.

<u>Step-by-step explanation</u>:

The given expression is (n-9) ÷ 10 = -2

<u>To find the value of n</u> :

  • From the expression, it is determined that (n-9) is the numerator and 10 is the denominator.
  • Cross multiply the denominator in the left side of the expression to the another side.

The expression becomes (n-9) = (10\times -2).

⇒ n-9 = -20

Keep the n term on one side and the constants on other side.

⇒ n = -20+9

⇒ n = -11

Therefore, the value of n is 11.

3 0
3 years ago
Evaluate.<br><br> 4^3−4÷2⋅5<br><br><br> 20<br><br> 40<br><br> 54<br><br> 150
nika2105 [10]

Answer:

150

Step-by-step explanation:

1. 4^3 = 4 x 4 x 4 = 16 x 4 = 64

2. 64 - 4 = 60

3. 60 ÷ 2 = 30

4. 30 ⋅ 5 = 150

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2 years ago
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20. The surface areas of two similar solids are 216 m² and 1014 m². The volume of the larger one is 2197 m³. What is the volume
Andrei [34K]

Answer:

  216 m³

Step-by-step explanation:

The ratio of linear dimensions is the square root of the ratio of area dimensions.

  s = √(216/1014) = √(36/169) = 6/13

Then the ratio of volume dimensions is the cube of that. The smaller volume is ...

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8 0
3 years ago
A particular convex pentagon has two congruent, acute angles. The measure of each of the other interior angles is equal to the s
NNADVOKAT [17]

1. First, you must apply the formula for calculate the sum of the interior angles of a regular polygon, which is shown below:


 (n-2) × 180°


 "n" is the number of sides of the polygon (n=5).


 2. Then, the sum of the interior angles of the pentagon, is:


 (5-2)x180°=540°


 3. The problem says that the measure of each of the other interior angles is equal to the sum of the measures of the two acute angles and now you know that the sum of all the angles is 540°, then, you have:


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 4. Finally, the larger angle is:


 2α=2(67.5°)=135°


 5. Therefore, the answer is: 135°

6 0
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