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Sindrei [870]
3 years ago
13

Substitution for {2x-3y=11 and -x + 2y = -6

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
7 0

Step-by-step explanation:

-x+2y=-6

x-2y=6

x=2y+6

substitute in 2x-3y=11 gives us 2(2y+6)-3y=11

4y+12-3y=11

y=-1

-x+2(-1)=-6

-x=-4

x=4

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Answer:

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Step-by-step explanation:

4 0
3 years ago
Marsha earn $25 per hour up to 36 hours; after this,she is paid double time. In one particular week she earned $1550.00 .how man
mel-nik [20]

Answer: Marta worked 13 hours overtime.

Step-by-step explanation:

1): You do 25 x 36 to get the amount of money she can make before she starts to make double.

36 x 25 = 900

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$1550 - $900 = $650

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7 0
2 years ago
Trapezoid JKLM is shown below.
Alecsey [184]
B is the answer because you have to math it
5 0
3 years ago
Determine the slope of the lines parallel and perpendicular to -4x+3y=11
andreev551 [17]

Answer:

parallel = 4/3

perpendicular =-3/4

Step-by-step explanation:

Solve for y

-4x+3y=11

Add 4x to each side

3y = 4x+11

Divide by 3

y = 4/3 x +11/3

This is in the form y = mx+b where m is the slope

m =4/3

The parallel line has the same slope

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m = -(1 /4/3) = - 3/4

6 0
3 years ago
Read 2 more answers
HELP!!!!!!!!!!!!!!!!
lesya [120]
2x^{2} is a monomial (since it is all connected by multiplication) and since it is in the degree of 2, that makes it a quadratic. 

-2 is a constant (since it doesn't have variables) and it is a monomial (since it is all connected by multiplication)

3x-9 is a binomial (since it has two terms, not connected by multiplication) and since it has x in the power of 1, that makes it a linear equation.

Finally, -3x^{2} -6x + 9 is a trinomial (since it has 3 terms connected by either addition or subtraction) and since the degree of the polynomial is 2, that makes it a quadratic. 
8 0
3 years ago
Read 2 more answers
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