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adell [148]
3 years ago
8

HELP!! Please solve these showing work thank you!!!!

Mathematics
1 answer:
Talja [164]3 years ago
4 0

1) g=6x divide both sides by 6 -> g/6=x

3)z=m-x subtract both sides by m -> z-m=-x flip the positive negative on each side->-z+m=x or m-z=x

5)u=x-k add k to each side -> u+k=x

7)u=k/a multiply each side by a -> ua=k divide each side by u-> a=k/u

9) 12am=4 divide each side by 12-> am=4/12=1/3 divide each side by m->  

a=\frac{\frac{1}{3}}{m}

10)-3x+2c=-3 subtract 2c from ech side ->-3x=-3-2c divide each side by -3            ->x=-3-2c/-3  = 2c+3/3

11)am=n+p divide both sides by m -> a=n+p/m

16)g=x-c+y subtract both sides by y -> g-y=x-c add both sides with c -> g-y+c=x

i hope these are correct

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Please help me with this. Use the combination method of substitution to solve. Please show and explain work. Thanks.
Artemon [7]

Answer:

x = 25.35 (or 2129/84) and y = 4334.04 (or 121353/28)

Step-by-step explanation:

The given equations are set up and ready to go with substitution. Simply just plug in the first equation to the second equation as both are equal to y.

Step 1: Replace y in <em>y = 87x + 2129 </em>with <em>171x</em>

171x = 87x + 2129

Step 2: Subtract 87 x on both sides

84x = 2129

Step 3: Divide both sides by 84 to get x

x = 2129/84 or 25.35 (rounded)

To get y, simply plug in x into one of the 2 original equations. In this case, I will use the first equation:

y = 171 (25.35)

y = 121353/28 or 4334.04 (rounded)

You can check your work by plugging both solutions into the calculator and see if they equal each other. The values for these answers are solely based on the equations, so if you write the <em>equations </em>wrong themselves, then that means you have the values wrong as well.

6 0
3 years ago
What is the value of 5^4 over 5^6
Tasya [4]
5^4
------
5^6
625
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15,625
625/15625=25

7 0
3 years ago
X^2 + 7x – 18 = 0<br> a<br> {–2, 9}<br> b<br> {–9, 2}<br> c<br> {2, 9}<br> d<br> {–2, –9}
Sedaia [141]

Answer:

b)-9,2

Step-by-step explanation:

x^2+7x-18=0

x^2+9x-2x-18=0

x(x+9)-2(x+9)=0

(x+9)(x-2)=0

therefore

x=-9

x=2

6 0
2 years ago
Help! im confuseddd!!!!!!!!!!
Assoli18 [71]

Answer:

sin B= square root of 3/ 2

Cos B= 1/2

tan B= square root of 3/1

Sin C=1/2

cos C square root of 3/2

tan C= 1/square root of 3

Step-by-step explanation:

4 0
2 years ago
Which number is an irrational number?
xxTIMURxx [149]

Answer:

3.5

Step-by-step explanation:

6 0
3 years ago
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