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avanturin [10]
3 years ago
11

Answer all the questions.

Mathematics
1 answer:
Fiesta28 [93]3 years ago
8 0

Answer:

1a. Gradient =4

1b. y=4x-5

For x:

4x-5=0

x=5/4

therefore x=1.25

for y:

y=4 (1.25)-5

y=0

therefore y=0

coordinate = (1.25,0)

equation for parallel= y=4x

Step-by-step explanation:

for equation of parallel, it is said parallel lines has the same gradient therefore, gradient of parallel line =4

y-y1=m (x-x1)

where m=gradient=4

y1&x1 are the coordinates which is (0,0)

y-0=4 (x-0)

y-0=4x-0

therefore:

y=4x

hope that's okay

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Identify a possible first step using the elimination method to solve the system and then find the solution to the system. 3x - 5
Nastasia [14]

Answer:

see explanation

Step-by-step explanation:

Given the 2 equations

3x - 5y = - 2 → (1)

2x + y = 3 → (2)

Multiply (2) by 5 will eliminate y when added to (1), that is

10x + 5y = 15 → (3)

Add (1) and (3) term by term

(3x + 10x) + (- 5y + 5y) = (- 2 + 15)

13x = 13 ( divide both sides by 13 )

x = 1

Substitute x = 1 into (2) for corresponding value of y

2 + y = 3 ⇒ y = 3 - 2 = 1

Solution is (1, 1)

7 0
3 years ago
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valentina_108 [34]

Answer:

1/4

Step-by-step explanation:

Casserole received by Jackie and Alicie = 1/2 x 3/4 = 3/8 of the whole

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6 0
3 years ago
Anybody know how to do this ​
ICE Princess25 [194]

Answer:

y = 2

y = 4

y = 8

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3 0
3 years ago
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7k − 5k + 8 = −4
Orlov [11]

Answer:

-6

Step-by-step explanation:

7k − 5k + 8 = −4

2k+8=-4

    -8  -8

2k=-12

/2   /2

k=-6

<u><em>Check!</em></u>

7(-6)-5(-6)+8

-4=-4

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3 years ago
nobodys probably gonna answer this ): but if you can please do with the answers its for my homework :)
kotegsom [21]

                                                       <u>Answer</u>

<h3>12 ) $1000</h3><h3 /><h3>13 ) Y-Intercept = 1000</h3><h3>       Slope = \frac{3000-2000}{4-2} = \frac{1000}{2} = \frac{500}{1}</h3><h3 /><h3>14 )  \left(x^{1\ },\ y^{1}\right)\left(x^{2},\ y^{2}\right) → \left(2\ ,\ 2000\right)\ \left(4\ ,\ 3000\right) → \frac{3000-2000}{4-2} → \frac{500}{1}</h3><h3 /><h3>15 ) The meaning of the slope is the steepness of the line, in this graph, the meaning is 500 over 1.</h3><h3 />

<em>Hope this helps! <3</em>

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6 0
3 years ago
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