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defon
3 years ago
7

Solving for x and y in a linear equation (x,y) -11x-10y=17 5x-7y=50

Mathematics
2 answers:
Elena-2011 [213]3 years ago
5 0
Top one
y=-1.7+11y
x=-1.55+10y
Bottom one
y=-7.14-5x
Ann [662]3 years ago
5 0
The best way to do this equation would be subtraction
-11x-10y=17
5x-7y=50
multiply the top equation by -7 and the bottom equation by 10
77x+70y=-119
50x-70y=500
The y cancels out
127x=381
x=3
plug y back into the original equation
-11(3)-10y=17
-33-10y=17
-10y=50
y=-5
(3,-5)
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kipiarov [429]
Time for first plane = 625 / 250
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8 0
3 years ago
X squared minus 4X plus 3 equals 0​
vagabundo [1.1K]

Answer:

x=4-3/x

Step-by-step explanation:

x^2-4x+3=0

x^2-4x=-3

x^2=4x-3

x=4-3/x

3 0
3 years ago
Can someone help with this please?
mel-nik [20]

Answer:

a. Function 1

b. Function 2

c. Function 4

Step-by-step explanation:

✔️Function 1:

y-intercept = 4 (the point where the line cuts across the y-axis)

Slope, using the two points (0, 4) and (1, 6):

\frac{y_2 - y_1}{x_2 -x_1} = \frac{6 - 4}{1 - 0} = \frac{2}{1} = 2

Slope = 2

✔️Function 2:

y-intercept = 1 (the value of y when x = 0)

Slope, using the two points (0, 1) and (1, -3):

\frac{y_2 - y_1}{x_2 -x_1} = \frac{-3 - 1}{1 - 0} = \frac{-4}{1} = -4

Slope = -4

✔️Function 3: y = 5x - 5

y-intercept (b) = -5

Slope (m) = 5

✔️Function 4:

y-intercept = -2

Slope = -1

Thus, the following conclusions can be made:

a. The function with the greatest y-intercept is Function 1 which is 4.

4 is greater than 1, -5, and -2.

b. Only Function 2 has slope that is less than -2.

-4 is less than -2.

2, 5, -1 are all greater than -2.

c. The function's graph with the least steep is the function whose slope value is the smallest. That is the greater the absolute value of the slope, the steeper the slope, and vice versa.

Function 4 has the least steep.

8 0
3 years ago
Which of the following decimal numbers are examples of terminating decimals?
IrinaVladis [17]
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a repeeting decimal like 0.666... would also be represented with a vinculum over the 6 (vinculum signifies a repeating group so 0.345345345 would have a vinculum over the 345 group then stop)

so termination decimals do not have vinculums or ...'s so the second choice (832.15902) is crossed out and all of the other choices are correct

answers
0.6868
14.1
32.7
9.125
1,087.59014
8 0
3 years ago
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8 0
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