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antoniya [11.8K]
3 years ago
8

3x +15= 2x + 10 + x +5 how many solutions​

Mathematics
1 answer:
Travka [436]3 years ago
6 0

3x +15= 2x + 10 + x +5\\\\3x-2x-x=  10  +5-15\\\\0=0

infinitely many solutions

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I keep getting (10,5) or (0,5) someone pls help
rodikova [14]

Answer:

(4,-3)

Step-by-step explanation:

Multiplying the bottom equation by -6, we get -6x+12y=-60.

Adding this to the first equation gives 15y=-45, and thus y=-3.

So, it follows that 6x+3(-3)=15, and thus x=4.

4 0
2 years ago
If avogadro's number of pennies is divided equally among the 250. million men, women, and children in the united states, how man
Anastasy [175]

We divide the pennies 100 to convert pennies to dollar

1 pennies= 1/100 dollar

Then we will convert 6.02×10∧23 p to dollar

=1 dollar/100 pennie ×6.02×10∧23

= 6.02×10∧21

The total men and women and children in 250 m  

=25×108

6.02×10∧21/2.5×10∧8

= 2.408×10∧13


6 0
3 years ago
What methods do stock analysts use to value an asset if they calculate profit minus the cost of capital?
Elan Coil [88]

Answer:

Economic Value Added (EVA)

4 0
3 years ago
Which expression ids equivalent to 5y + 2y +6x +2y-x
Alexxx [7]

Answer:

9y + 5x

Step-by-step explanation:

5y + 2y +6x +2y-x

(5 + 2 + 2)y + (6 - 1)x

9y + 5x

7 0
3 years ago
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For what values of the variables are the following expressions defined? 5y+2
babymother [125]

Answer:

all possible y values

Step-by-step explanation:

5y + 2 is defined for all values of y.

3 0
3 years ago
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