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Alex
3 years ago
10

One number is 6 more than twice another. If their sum is 51, find the numbers. Which of the following systems of equations repre

sents the word problem?
A. y = 2x + 6 and y = x + 51
B. = 2x + 6 and x + y = 51
C. y = 2(x + 6) and x + y = 51
Mathematics
1 answer:
Keith_Richards [23]3 years ago
7 0
Let x and y be the two unknown numbers. The first statement says that one number say x, is 6 more than twice another, say, y. If we express this mathematically, that would be:

x = 6 + 2y   or that could be   y = 6 + 2x

The second statement says that the sum of both numbers, x and y, is 51. That would be

x + y = 51

From the choices, the answer would be
<span>B. y = 2x + 6 and x + y = 51</span>
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How many hours would you have to ride your bike at 10 mi/h to burn 550 calories? (Per Minute)
vesna_86 [32]

Answer:

The  time spend to burn energy is 3300 minutes  .

Step-by-step explanation:

Given as :

The speed at which the bike ride = 10 miles per hours

The energy burn while riding = 550 calories

Let The time spend to burn energy = t minutes

So, According to question

Time spend = \dfrac{\textrm Energy burn}{\textrm rate of ride}

i.e t = \dfrac{550}{10} hours

∴  t = 55 hours

So, in minutes

The time spend

1 hours = 60 min

∴ 55 hours = 60 × 55 = 3300 minutes

So, The spend to burn energy = t  = 3300 minutes

Hence The  time spend to burn energy is 3300 minutes  . Answer

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4 years ago
Which digit represents "hundreds" in the number 8732?
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3 years ago
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gogolik [260]
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5 0
3 years ago
After college you start a job earning $40,000 a year. You get a 6% raise each year.
alex41 [277]
Answers: A) $44,944
B) $50,499.0784


Math: Using the percentage calculator linked below 6% of $40,000 is $2,400. Since you're getting your second raise after your first and since it is a 6% raise from what you're getting paid at that time we add pay raise 1 to your starting pay before calculating the 6% for pay raise 2. $40,000+$2,400=$42,400. 6% of $42,400 is $2,544. $42,400+$2,544=$44,944, Since that is two pay raises that would be your earnings at the end of year two (answer A).
We continue calculating 6% then adding that onto the total before calculating it for the next year for problem B.
6% of $44,944 is $2,696.64. $44,944+$2,696.64=$47,640.64.
6% of $47,640.64 is $2,858.4384. $47,640.64+$2,858.4384=$50,499.0784. That's answer B.


Hopefully you can figure out C on your own! I feel a little bad for giving a partial answer but I think you can do this!

Percentage calculator used-https://percentagecalculator.net/
Note: can't handle commas, remove all commas before entering data in.
7 0
3 years ago
A copy machine makes 45 copies in 25 seconds .Find the unit rate of copies per second
katen-ka-za [31]

Answer:

1.8

Step-by-step explanation:

45 divided by 25


5 0
4 years ago
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