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LuckyWell [14K]
3 years ago
7

What is the solution to the system of equations below? Y=-4/5x-6 & y=-30

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
6 0

its A) 45,-30

i got this answer by using a graphing calculator.

Ainat [17]3 years ago
5 0
So when you are trying to find the solution to the system of equations make sure that you have it where y= -4/5x-6 and y= -30 are written like this:

-30=-4/5x-6

And then solve for x:

Add 6 on both sides. 

-24=-4/5x

Then multiply by the reciprocal of -4/5.

-5/4*-24=-5/4*-4/5x

x=30 

But then you are gonna want to plug 30 in for x in y=-4/5x-6 to make sure that it is the same as y=-30.
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Wittaler [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
On a coordinate plane, a line goes through (negative 3, 2) and (0, 1). A point is at (3, 4).
Amiraneli [1.4K]

Answer:

y = 3x - 5

Step-by-step explanation:

Points on given line: (-3, 2), (0, 1)

m1 = slope of given line; m = slope of perpendicular

Slope of given line = m1 = (y2 - y1)/(x2 - x1) = (2 - 1)/(-3 - 0) = 1/(-3) = -1/3

The slopes of perpendicular lines have a product of -1.

m1 * m = -1

-1/3 * m = -1

m = 3

Slope of perpendicular: m = 3

Point on perpendicular: (3, 4)

y - y1 = m(x - x1)

y - 4 = 3(x - 3)

y - 4 = 3x - 9

y = 3x - 5

Answer: y = 3x - 5

4 0
3 years ago
Please help me asap ​
Luden [163]

Answer:

16.28 ft^2

Step-by-step explanation:

To find the area of the square do Base Times height.

Base (5), Height (2)

5 * 2 = 10

To find the semi circle do the regular formula for a circle but divide it by 2 at the end.

Area of a circle is pi time r squared

3.14 * 2^2 = 12.56 (Remember always follow order of operations or PEMDAS by squaring 2^2 first)

Since its a semi circle divide the area of the circle by 2.

12.56 / 2 = 6.28

To find the area of them both you add both areas together.

6.28 + 10 = 16.28 Ft^2

4 0
3 years ago
The sum of two numbers is 20 the difference between three times the first number and twice the second is 40 find the smallest nu
Dmitriy789 [7]

Answer:

The smallest number is 0

Step-by-step explanation:

x + y = 20

3x - 3y = 40

solving these two equations

x = 0

y = 20

7 0
3 years ago
I need help with number 7 please help.
cestrela7 [59]
Y = 2x

Because for every serving there are 2 pints
5 0
3 years ago
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