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Semenov [28]
3 years ago
13

5(2x - 8) - 15 = 5 Show/Write the steps you would use to solve the equation.

Mathematics
1 answer:
natulia [17]3 years ago
3 0

Answer:

x=6

Step-by-step explanation:

Solve for x:

5 (2 x - 8) - 15 = 5

5 (2 x - 8) = 10 x - 40:

10 x - 40 - 15 = 5

Grouping like terms, 10 x - 40 - 15 = 10 x + (-40 - 15):

10 x + (-40 - 15) = 5

-40 - 15 = -55:

10 x + -55 = 5

Add 55 to both sides:

10 x + (55 - 55) = 55 + 5

55 - 55 = 0:

10 x = 5 + 55

5 + 55 = 60:

10 x = 60

Divide both sides of 10 x = 60 by 10:

(10 x)/10 = 60/10

10/10 = 1:

x = 60/10

The gcd of 60 and 10 is 10, so 60/10 = (10×6)/(10×1) = 10/10×6 = 6:

Answer: |

| x = 6

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This is (compound) probability: Picking two numbers from 1-10 and getting a multiple of 3 both times.
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Answer:

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As their is only one for the probability is

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<span>D.) Tan Z=a/b
</span>
The answer would then be B. SinX = c/b.

Just remember SOH CAH TOA:

Sinθ=  Opposite         Cosθ =    Adjacent             Tanθ=   Opposite
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Using the triangle in the scenario, you just need to identify which side is which. 

Given m∠Z
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SinZ=  a         CosZ = b             TanZ= a 
            c                      c                        b

Given m∠X:

Adjacent = b
Opposite = a
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SinX= <u> b </u>        CosX =<span><u> a </u></span>            TanX=<span><u> b </u></span>
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So the answer is B. 

Attached is a picture of how I assigned the sides depending on the angle used.

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