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Elan Coil [88]
3 years ago
9

Solve for a 2a - 2 = 6a + 18

Mathematics
2 answers:
Hatshy [7]3 years ago
8 0
Answer: a= -5
Step by step: 2a - 2 = 6a + 18
-2a -2a
-2 = 4 a + 18
-18 - 18
-20 = 4 a
-5 = a
My name is Ann [436]3 years ago
7 0
A:5
2 times -5 is -10 minus 2 is -12
6 times -5 is -30 and plus 18 is -12
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Kristel is considering hiring a moving company. Sanford's Plus charges an initial fee of $125 plus $165 per hour. Quality Moving
Anna35 [415]

Let the number of hours be $x

Initial charges by Sanford's Plus = $125

Per hour charges = $165

Total cost of Sanford's Plus company = 125 + 165x

Initial charges by Quality Moving Company = $200

Per hour charges = $145

Total cost of Quality Moving Company = 200 + 145x

If either company were hired for hours, the total cost would be the same

125 + 165x = 200 + 145x

Add -125 on both sides

125 - 125 + 165x = 200 + 145x-125

165x = 75 + 145x

Add -145 on both sides

165x - 145x = 75

20x = 75

Divide both side by 20, to find the value of x

x = 75/20

x = 3.75 hours

Total cost of Sanford's Plus company = 125 + 165x

x = 12 hrs

Total cost of Sanford's Plus company = 125 + 165(12)

Total cost of Sanford's Plus company = 125 + 1980

Total cost of Sanford's Plus company = $2105

5 0
3 years ago
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A waterfall is n times the height of its picture on a postcard.
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Answer: y=6n

Step-by-step explanation:

8 0
3 years ago
Find slope of the line passes through (7, 3)and (9, 6​
RUDIKE [14]

Answer:

slope = 3/2

Step-by-step explanation:

(y2-y1)/(x2-x1)

= (6-3)/(9-7)

= 3/2

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6 0
3 years ago
6. Katie is 2 years younger than her brother. In 12
Eva8 [605]

Answer:

4

Step-by-step explanation:

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3 0
3 years ago
1 divided by root6 - root11 + root5. urgent
vodomira [7]
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LCM = √6

(1 - (√6)*(√11) + (√5)*(√6) ) / √6


(1 - √(6*11)   + √(5*6) )/ √6


Rationalize the surd by multiplying top and bottom by  √6

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(√6 -  √(6*6*11) + √(5*6*6)) /  √6

(√6 -  6√(11) + 6√(5)) /  6

So answer is:

(√6 -  6√11 + 6√5) / 6
3 0
4 years ago
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