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Dennis_Churaev [7]
3 years ago
7

Solve this equation 1 = 1 - 2n + 8

Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0
<h3>Answer:</h3>

n=4

<h3>Explanation:</h3>

1 = 1 - 2n + 8

2n =  - 1  + 1 + 8

2n = 8

n = 4

I hope you are satisfied

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Yutaka enjoys running. For every kilometer he runs, he burns 65 calories. He wrote this equation to find how many calories he bu
koban [17]

Answer:

(k): 65k=c   is true  per kilometer he runs,

Step-by-step explanation:

(k): 65k=c   is true     if Yutaka was to walk and burn only 48 calories then k then is x= walk  and y = run   8x+7y>= c      8x+7y>=  8(48) + 7(65) >= 839

5 0
2 years ago
The average of your first 6 tests is 82. If your test average after your seventh test is an 80.5, what did you score on the seve
mart [117]
So average is  of the first 6 tests is 82   well that means 

(test1 + test2+ test3+ test4 + test5+test6)/6 = 82

so now let do some cross multiplliying 

test1 + test2 + test3 + test 4 + test5 +test6 = 82*6

test1 + test2 + test3 + test 4 + test5 +test6  = 492

now lets see if we can find that 7th test score

(test1 + test2 + test3 + test4 + test5 +test6 + test7)/7 = 80.5

So look we found test1 + test2 + test3 + test4 + test5 +test6 to be 492 so lets substitute. 

(492 + test7 )/7 = 80.5

test7 = (80.5*7)-492 = 71.5 



7 0
3 years ago
You get paid $12/hr and earned $36, how many hours did you work?
Montano1993 [528]

Answer:

3 hours

Step-by-step explanation:

36 divided by 12 equals 3

4 0
1 year ago
Someone help if you can
Sav [38]

Answer:

sorry but the words are very blurry

3 0
3 years ago
A town has accumulated 2 inches of snow, and the snow depth in increasing by 6 inches every hour. A nearby town has accumulated
earnstyle [38]
Town A starts with 2in and has a rate of accumulation of 6in every 1 hour
Town B starts with 9in and has a rate of accumulation of 3in every 1 hour

If X is number of hours then:

2+ 6X= 9+3X
6x-3x=9-2
3x=7
X=7/3 is about 2 hours
7 0
3 years ago
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