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expeople1 [14]
3 years ago
6

Explain it so I can better understand it

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
6 0
The question is essentially asking who's equation works better (Part A) and to explain why (Part B). 
Marcella is suggesting the equation 6r + 12 = 683.88 
Julia is suggesting the equation 6(r + 12) = 683.88 

Six people are on the trip.
It is $12 PER person to rent a floatation device. 
The total cost of the trip was $683.88.

Hope I've helped!


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John, Johan, and Jonathan collect postage stamps. Johan and Jonathan have the same number of stamps. Two times Johan’s collectio
MrRissso [65]

The number of postage stamps in John’s collection is 27.

We have given that,

John, Johan, and Jonathan collect postage stamps. Johan and Jonathan have the same number of stamps.

<h3>What is an elimination method?</h3>

The elimination method is the process of eliminating one of the variables in the system of linear equations using the addition or subtraction methods in conjunction with the multiplication or division of coefficients of the variables.

Johan and Jonathan have the same number of stamps.

Let x be the Johan and Jonathan postal stamps.

Let y be the John postal stamps.

Two times Johan’s collection is eleven less than five times John’s collection.

2x = 5y - 11............(1)

Three times Jonathan’s collection is three less than seven times John’s collection.

3x = 7y - 3............(2)

Multiply equation 1 with 3

3(2x = 5y - 11)

⇒ 6x = 15y - 33.........(3)

Multiply equation 2 with 2

2(3x = 7y - 3)

⇒ 6x = 14y - 6.............(4)

Subtract equation 4 from equation 3

⇒ 6x - 6x = 15y - 33 - (14y - 6)

⇒ 0 = y - 27

⇒ y = 27

Hence, the number of postage stamps in John’s collection is 27.

Find more information about the elimination method here

brainly.com/question/13877817

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6 0
1 year ago
U have 12 dogs all but 8 dogs died how many dogs are still alive
mash [69]
8 dogs are still alive because you take away 4 from 12 which equals 8
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4 0
3 years ago
Read 2 more answers
- help help help help help help!!!!
Viefleur [7K]

Answer:

B would be -7

Step-by-step explanation:

Because 6 times -7 equals -42

4 0
3 years ago
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How many ways can a dozen books be placed on four distinguishable shelves if no two books are the same, and the positions of the
Jet001 [13]

Answer:

217945728000 ways

Step-by-step explanation:

Given

Books = 12 --- 1 dozen

Shelf = 4

The given condition implies that;

Book\ 1  = 4 ---- any of the 4 shelves

Book\ 2  = 5 --- any of the 4 shelves and either ways of book 1

Book\ 3  = 6  --- any of the 4 shelves and either ways of book 1 and 2

-----------------------

----------------

----------

<h2>Book\ 12 = 15</h2><h2></h2>

So, the number of ways is:

Ways = 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 * 13 * 14 * 15

Ways = 217945728000

5 0
3 years ago
My son needs help with a math question in his homework.It says Mike has 876 building pieces to share among himself and 2 friends
marysya [2.9K]

The answer is 292 per person. Since there is three of them you divide 876 by 3. The answer then ends up being 292. Hope this helps.

5 0
3 years ago
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