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Lerok [7]
3 years ago
7

Solve the system of equations below x-2y=3 2y-3y=9

Mathematics
1 answer:
Crank3 years ago
6 0
First you solve 2y-3y=9.
2y - 3y = 9 \\ subtract \: 2y \: and \: 3y \\  - y = 9 \\  divide \: by \:  - 1 \\ y =  - 9
Now that you have y, then you substitute y into x-2y=3 to find X

x - 2( - 9) = 3 \\ multiply \:  - 9 \times  - 2 \\ x + 18 = 3 \\ subtract \: 18 \: on \: both \: sides \\ x =  - 15
Your solution is (-15, -9)
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A little help please?
Tasya [4]
3x-10+2x=115
5x-10=115
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x=25

m<b=3(25)-10=65
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7 0
3 years ago
Rewrite the equation by completing the square.<br>x^2-2x+1=0​
kaheart [24]

Answer:

(x - 1)² = 0

Step-by-step explanation:

Given

x² - 2x + 1 = 0 ( subtract 1 from both sides )

x² - 2x = - 1

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 1)x + 1 = - 1 + 1

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5 0
3 years ago
Simplify the following:<br>3.2.1 (5x)=(2xy)<br>15xy​
Monica [59]

Answer:

x=\frac{1}{6y^{2} }  ,x=0; y\neq 0

Step-by-step explanation:

7 0
2 years ago
-2x + 7 = -32 i need all the steps
iris [78.8K]

Answer:

x = 19.5

Step-by-step explanation:

-2x + 7 = -32           (subtract 7 on both sides)

      -7     -7

-2x = -39                  (Divide by -2)

x = 19.5

     

7 0
2 years ago
Read 2 more answers
A garden flower grows a total of 10 cm in July and August. Assuming that the flower grows at a consistent rate for a full year,
d1i1m1o1n [39]

9514 1404 393

Answer:

  60 cm

Step-by-step explanation:

July and August are 2 of the 12 months in the year. The growth for the year can be expected to be 6 times the growth in a 2-month period, so 60 cm.

_____

You could get down to particulars as to the number of days in those two months versus the total number of days in a year. You would have to specify whether it is a leap year. In a non-leap year, the growth might be ...

  365/(31+31) × 10 cm ≈ 58.9 cm

In a leap year, it would be 59.0 cm.

6 0
2 years ago
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