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mixas84 [53]
3 years ago
8

Help plssssssssssssss???

Mathematics
1 answer:
KatRina [158]3 years ago
7 0

Answer:

Step-by-step explanation:

Sjdfn andnd nsns

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Solve the system of equations using elimination/combinations.
const2013 [10]

Answer:

The solution is (1,2)

Step-by-step explanation:

- 2x - y = - 4

 x + 2y = 5

Multiply the second equation by 2 so we can eliminate x

2( x + 2y) = 5*2

2x +4y = 10

Add this to the first equation

- 2x - y = - 4

2x +4y = 10

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

3y = 6

Divide each side by 3

3y/3 = 6/3

y = 2

- 2x - y = - 4

 x + 2y = 5

Multiply the first equation by 2 to eliminate y

2(- 2x - y) = - 4*2

-4x -2y = -8

Add this to the second equation

-4x -2y = -8

x + 2y = 5

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

-3x = -3

Divide by -3

-3x/-3 = -3/-3

x = 1

The solution is (1,2)

3 0
3 years ago
How can you solve quadratic equation in one variable using factoring method?​
Tresset [83]
Take a quadratic equation in standard form:
If there exists a sum of two numbers that equal b, whose addends produce a product that equals c. You can rewrite the quadratic as a product of two binomials.


For example take
When thought through throughly, -5 had addends, -2 and -3 that produce 6 when multiplied
Thus, we can rewrite the quadratic as.
4 0
3 years ago
A plumber charges a base fee of $ 60, and then each hour of work costs $ 15. Yesterday Joe hired the plumber to fix his sink, at
lutik1710 [3]

Answer:

12 hours

Step-by-step explanation:

Step one:

given data

base fee= $60

charge per hour= $15

let the number of hours the plumber work be x

the linear function for the charge is the equation of line.

that is y=mx+c

Step two:

given that y=$240

240=15x+60

240-60=15x

180=15x

divide both sides by 15 we have

x=180/15

x=12

<u>The number of hours is 12</u>

4 0
3 years ago
Karen wrote a six digit number that only has one 8 in it . Kim also wrote a six digit number. The 8 in karens number is worth 10
Dahasolnce [82]

the 8 could be tens spot, Hundreds spot, Thousands ... till the end for karens spot

Step-by-step explanation:

Sorry if im wrong.

3 0
3 years ago
Please answer this correctly without making mistakes
dem82 [27]

Shortest is Vindale to Wildgrove to Clarksville

18.9 + 13.2 = 32.1 km.

3 0
4 years ago
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