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Fudgin [204]
3 years ago
13

How do I solve this? What do they mean

Mathematics
1 answer:
adell [148]3 years ago
8 0
Complimentary angles add to equal 90°. Write two equations to solve for two variable.
J + K = 90
J = K - 18

use substitution or elimination to solve
I will use substitution. substitute (K - 18) for J in the first equation to combine equations into one in only variable K.

(K - 18) + K = 90
2K - 18 = 90
2K = 90 + 18
2K = 108
K = 108/2
K = 54°

J and K are complimentary.
J + 54° = 90°
J = 36°
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Two thirds.
1/3 +1/3 = 2/3.
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4 0
2 years ago
Which represents the volume of the cylinder, in cubic units?<br><br> 120π<br> 130π<br> 300π<br> 325π
IrinaVladis [17]
Volume=(pi)(radius^2)(height)
Volume=(pi)(5^2)(12)
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5 0
3 years ago
Read 2 more answers
Steps for solving 3x+18=54 are shown explain how step 1 helps solve the equation
Dennis_Churaev [7]

Answer:

The answer is x=12.

Step-by-step explanation:

First, to solve this equation you need to isolate the x variable. To isolate the variable, you must, subtract the other term from both sides. Subtracting 18 from both sides, you are left with 3x = 36. Since 3 times x = 36, dividing both sides by 3 gets you, x=12.

4 0
3 years ago
-3x + 7x-8 = 34 + 9x - 2
zvonat [6]

Answer:

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Step-by-step explanation:

First combine like terms:

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-8=x

8 0
3 years ago
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