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3 years ago

Evaluate the promblem. 3x+6+5x=86

Mathematics

2 answers:

Mashcka [7]3 years ago

8 0

Answer:

10 or x=10

Step-by-step explanation:

First we can combine like-terms.

8x+6=86

Then subtract 6 from both sides

8x=80

Divide by 8

x=10

SpyIntel [72]3 years ago

7 0

Answer:

8x+6=86

Step-by-step explanation:

first you add up your liked terms

3x + 5x = 8×

than you add 6 to get an equation

8x + 6 = 86

so than find X

8 × 10 = 80 than add 6

and your answer is 86

8x + 6 = 86

x=10

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Mark lives in a state that charges him 6.1% income tax on his federal taxable income. If his federal taxable income is $79,400,

AysviL [449]

Answer:

D. 4.843,40

Step-by-step explanation:

The total amount is 79.400 dollars and that is the one to charge with the income tax.

Remembe that 6,1%=0,061 and this is easier to multiply

Income tax= taxable income*income tax

With our numbers

Income tax=79.400*0,061

=4.843,40

Thats the state income tax that Mark has to pay

7 0

3 years ago

Help please 150 x 189

ExtremeBDS [4]

It is 28350 merry Christmas

8 0

3 years ago

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aPLEASE HELP!!!!!!! In ΔKLM, the measure of ∠M=90°, the measure of ∠K=41°, and MK = 38 feet. Find the length of LM to the neares

xz_007 [3.2K]

Answer:

33.0

Step-by-step explanation:

Using the pythagoras theorem

tan theta = opposite/adjacent

tan 41 = x/38

x = 38tan41

x = 38(0.8693)

x = 33.03

Hence the value of x to nearest tenth is 33.0

5 0

3 years ago

Use elimination to solve.<br> 3y-6x=7<br> -4y-3x=9

shtirl [24]

Answer:

x = -5/3, y = -1 or $(-\frac{5}{3}, -1)$

Step-by-step explanation:

Solving systems of linear equations using process of elimination involves eliminating one of the variables (and its coefficient) in order to solve the other variable either through addition or subtraction. However, there may be other mathematical operations necessary before one of the variables can be eliminated.

Equation 1: 3y - 6x = 7

Equation 2: -4y - 3x = 9

<h3>Step 1: Multiply Equation 2 by -2:</h3>

(-2)(-4y - 3x) = 9 (-2)

8y + 6x = -18

<h3>Step 2: Add "8y + 6x = -18" to Equation 1:</h3>

8y + 6x = -18

+ 3y - 6x = 7

11y = -11

<h3>Step 3: Divide both sides by 11 to solve for y:</h3>

$\frac{11y}{11} = \frac{-11}{11}$

y = -1

<h3>Step 4: Substitute y = -1 into Equation 2 to solve for x: </h3>

-4(-1) - 3x = 9

4 - 3x = 9

<h3>Step 5: Subtract 4 from both sides:</h3>

4 - 4 - 3x = 9 - 4

- 3x = 5

<h3>Step 6: Divide both sides by -3 to solve for x:</h3>

$\frac{-3x}{-3} = \frac{5}{-3}$

$x = - \frac{5}{3}$

Verify whether the values for x and y are correct by substituting their values into both equations:

x = -5/3, y = -1

Equation 1: 3y - 6x = 7

$3(-1) - 6(-\frac{5}{3}) = 7$

-3 + 10 = 7

7 = 7 (True statement).

Equation 2: -4y - 3x = 9

-4(-1) - 3 (-5/3) = 9

$-4(-1) - 3(-\frac{5}{3}) = 9$

4 + 5 = 9

9 = 9 (True statement).

Therefore, x = -5/3 and y = -1 are the solutions to the given systems of linear equations.

8 0

3 years ago

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blondinia [14]

The answer would be 42/25

3 0

3 years ago

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