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viktelen [127]
3 years ago
11

I need help figuring out the slope to these points Y=-x-4

Mathematics
1 answer:
mash [69]3 years ago
8 0

Answer:the slope is -1

Step-by-step explanation:

Comparing them equation to

y=mx+c where m is there slope

y=-x-4 the slope is -1

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Solve by using elimtation
Wewaii [24]

Answer:

1. x = 5, y = 13/2

2. x = 15 , y = 24

Step-by-step explanation:

Solve the following system:

{8 y + 6 x = 82 | (equation 1)

{6 y + 9 x = 84 | (equation 2)

Swap equation 1 with equation 2:

{9 x + 6 y = 84 | (equation 1)

{6 x + 8 y = 82 | (equation 2)

Subtract 2/3 × (equation 1) from equation 2:

{9 x + 6 y = 84 | (equation 1)

{0 x + 4 y = 26 | (equation 2)

Divide equation 1 by 3:

{3 x + 2 y = 28 | (equation 1)

{0 x + 4 y = 26 | (equation 2)

Divide equation 2 by 2:

{3 x + 2 y = 28 | (equation 1)

{0 x + 2 y = 13 | (equation 2)

Divide equation 2 by 2:

{3 x + 2 y = 28 | (equation 1)

{0 x + y = 13/2 | (equation 2)

Subtract 2 × (equation 2) from equation 1:

{3 x + 0 y = 15 | (equation 1)

{0 x + y = 13/2 | (equation 2)

Divide equation 1 by 3:

{x + 0 y = 5 | (equation 1)

{0 x + y = 13/2 | (equation 2)

Collect results:

Answer: {x = 5, y = 13/2

_____________________________________

Solve the following system:

{8 y + 3 x = 237 | (equation 1)

{3 y + 5 x = 147 | (equation 2)

Swap equation 1 with equation 2:

{5 x + 3 y = 147 | (equation 1)

{3 x + 8 y = 237 | (equation 2)

Subtract 3/5 × (equation 1) from equation 2:

{5 x + 3 y = 147 | (equation 1)

{0 x + (31 y)/5 = 744/5 | (equation 2)

Multiply equation 2 by 5/31:

{5 x + 3 y = 147 | (equation 1)

{0 x + y = 24 | (equation 2)

Subtract 3 × (equation 2) from equation 1:

{5 x + 0 y = 75 | (equation 1)

{0 x + y = 24 | (equation 2)

Divide equation 1 by 5:

{x + 0 y = 15 | (equation 1)

{0 x + y = 24 | (equation 2)

Collect results:

Answer: {x = 15 , y = 24

3 0
1 year ago
Circumference and area of a circle <br>help me please ​
Free_Kalibri [48]
A.) The circumference of the tire is 94.2

B.) The tire will have to rotate 56 times to
travel 1 mile.
3 0
2 years ago
Split 84 into two parts so that one part is five times the other part.
faust18 [17]

Answer:

x+5x=84

6x=84

6x/6=84/6

x=14

so therefore

14+5(14)

14+70

The numbers are 14 and 70

4 0
3 years ago
Read 2 more answers
A box dozen fruit tarts cost $15 what is the cost of one fruit tart
Anna007 [38]
One dozen = 12

15/12 = 1.25

The cost of one fruit tart is $1.25
7 0
3 years ago
Read 2 more answers
What are the terms in this expression 3+4x5
irakobra [83]
You have zero terms in that equation. A term is when a number is connected to a variable. You have no variables.
~Silver
5 0
3 years ago
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