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maksim [4K]
3 years ago
11

Substitution. (6 points)3x + 2y = 12y = 2x − 1plz help (with work)

Mathematics
1 answer:
stellarik [79]3 years ago
8 0
The answer for #1 is y = - 3/2 x + 6
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The landscaper charges a rate of $40 per hour to plant trees.
Wittaler [7]

Answer:

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Step-by-step explanation:

7 0
3 years ago
What are the solutions?<br>8x^2-12x-23=-5​
erastova [34]

Answer:

x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

Step-by-step explanation:

Solve for x over the real numbers:

8 x^2 - 12 x - 23 = -5

Divide both sides by 8:

x^2 - (3 x)/2 - 23/8 = -5/8

Add 23/8 to both sides:

x^2 - (3 x)/2 = 9/4

Add 9/16 to both sides:

x^2 - (3 x)/2 + 9/16 = 45/16

Write the left hand side as a square:

(x - 3/4)^2 = 45/16

Take the square root of both sides:

x - 3/4 = (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

x = 3/4 + (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

Answer:  x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

4 0
3 years ago
Plot the intercepts to graph the equation
natulia [17]
Jsjdhdjsjensbejejdndnsksbdjendkebfkendntjd

8 0
3 years ago
Someone help please I'm having a hard time understanding​
Over [174]

Answer:

the angle shown is a straight angle value of which is equal to 180°

3x + 30. 6 = 180

3x = 180 - 30. 6

3x = 149.4

<h3>x = 49.8</h3>
8 0
3 years ago
5 5/6 divided by 6 1/8 is
maw [93]
5 5/6 = 35/6
6 1/8 = 49/8

35/6 divided by 49/8=
35/6 x 8/49
= 280/294
Simplified form: 20/21
4 0
3 years ago
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