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vaieri [72.5K]
2 years ago
8

Please help Simplify:

Mathematics
1 answer:
Temka [501]2 years ago
6 0

Answer:

-9 3/4a+10 2/5

Step-by-step explanation:

-12 * 5/6a = -10a

-12 * -7/8 =  10 1/2

1/14 * 3 1/2a = 1/4 a

1/14 * -1 2/5 = -1/10

Put it together: -10a + 10 1/2 + 1/4a - 1/10

-10a+1/4a = -9 3/4a

10 1/2-1/10= 10 2/5

-9 3/4a + 10 2/5

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I hope this helps you

find trapezoid sides from right triangle

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let's find hypothenus(trapezoid side)=x

x^2=2^2+6^2=40

x=2 square root of 10

let's sum of the trapezoid sides

2x+2 bases

4 square root of 10+(7unit+3unit)

4 square root of 10 +10

4 0
3 years ago
Please help with 5. Thanks
Ierofanga [76]
4 + 1.3 = 5.3
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5 0
3 years ago
Solve the system of equations using the substitution method.
ANTONII [103]

The solution of system of equations is: x = 1.6 and y = 1.2

Step-by-step explanation:

Given equations are:

y = 2-\frac{1}{2}x\ \ \ \ Eqn\ 1\\x-3y = -2\ \ \ eqn\ 2

Putting y = 2-\frac{1}{2}x in equation 2

x - 3(2-\frac{1}{2}x) = -2\\x - 6 + \frac{3}{2}x = -2\\x +\frac{3}{2}x = -2+6\\\frac{2x+3x}{2} = 4\\\frac{5x}{2} = 4\\5x = 4 * 2\\5x = 8\\x = \frac{8}{5}\\x = 1.6

Putting x = 1.6 in equation 2

1.6-3y = -2\\-3y = -2-1.6\\-3y =- 3.6

Dividing both sides by -3

\frac{-3y}{-3} = \frac{-3.6}{-3}\\y = 1.2

Hence,

The solution of system of equations is: x = 1.6 and y = 1.2

Keywords: Linear equations, variables

Learn more about linear equations at:

  • brainly.com/question/9045597
  • brainly.com/question/9103248

#LearnwithBrainly

5 0
3 years ago
8x − 8 = 4x + 12..........................................
Svetradugi [14.3K]

Answer:

x=5

Step-by-step explanation:

8x − 8 = 4x + 12

8x - 4x= 12 + 8

4x=20

x=20/4

x=5

6 0
3 years ago
Read 2 more answers
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vodomira [7]

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4 0
3 years ago
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