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nikdorinn [45]
3 years ago
12

The product of a number and 3 plus 1 is 19

Mathematics
2 answers:
elena55 [62]3 years ago
7 0

Answer:

the aswer is 15

Step-by-step explanation:

The product of a number and 3 plus 1 is 19.  

1. the product of  a # and 3+1=19

      x+3+1=19

2. x is the variable

3. 3*5=15         15+3+1=19

<u><em>4.x=15</em></u>

ElenaW [278]3 years ago
4 0
The correct answer is 15.
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Novosadov [1.4K]
• So we know that.....

x represent bags of snack and y is bottles of water.


This equations shows the total amount and the cost of each water bottle and snack:

20.00 = 2.50x + 1.00y

Total: $20.00
Snack: $2.50
Water Bottle: $1.00


And this question shows the total items:

11 = x + y

Which there will be some snack + some water bottle = 11 items


—————————————————————

• Now I’m going to first solve for x, which is the amount of bags of snack.

I will use the equation, 11 = x + y.

(First, we’ll subtract y from both side, since we’re solving for x [UNDO])

11 = x + y
-y = - y
_______
11 - y = x —> so x is equal to 11 minus y.


—————————————————————

• Now we’re going to plug the 11 - y as x in the equation: 20.00 = 2.50x + 1.00y to solve for y.

20.00 = 2.50 (11 - y) + 1.00y

20.00 = 27.5 - 2.50y + 1.00y (Distributed)

20.00 = 27.5 - 1.50y (Combine like terms)

20.00 = 27.5 - 1.50y
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-7.5 = - 1.50y


-7.5 = -1.50y
—— ——— (Divide both side by -1.50)
- 1.50 = -1.50

5 = y

y is equals to 5, which means that there are 5 water bottles.


Now we know there are 11 items total and because there are 5 water bottles, there will be 6 bags of snacks. 11-5=6

—————————————————————

ANSWER:

They bought 6 bags of snacks! :)
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5 0
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Crank

Answer: Fourth option.

Step-by-step explanation:

By definition, a relationship is a function if and only if each input value (or each x-value) has only one output value (or y-value).

Given the first table:

x|2\ \ 2\ \ 3\ \ 3\\y|5-5\ 6-6

You can notice that the input values 2 and 3 do not have only one output value. Therefore, this table does not represent a function.

The second table is:

x|4-4\ 4\ -4\\y|1\.\ \ 2\ \.\ \ 3\ \ 4

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The fourth table is:

x| 2\ -2\ 4\ -4\ \\y|8\ \.\ \ 8\ \ 12\ \ 12

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4 0
3 years ago
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Height, weight, and income since they all deal with numbers
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2 years ago
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