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dsp73
3 years ago
14

Help with #7. Can someone show me step by step how to do please

Mathematics
1 answer:
aleksley [76]3 years ago
3 0

Answer:


Step-by-step explanation:

9y + 12 = 4y - 10

Sub. 4y from both sides

5y + 12 = 10

Sub. 12 from both sides

5y = -2

Divide 5from both sides

y = -2/5

Substitute -2/5 into 4y - 10


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2. Each of the following lines has a slope that can be determined by examining the graph. Use another point
Natali [406]

The slope, y-intercept and the equation of the following graph are as follows:

1(a)

slope : 1

y-intercept: 2

Equation: y = x + 2

(b)

slope : -  1 / 3

y-intercept: - 1

Equation: y = - 1 / 3x - 1

2.

(a)

slope : 3 / 4

y-intercept: 5 / 4

Equation: y = 3 / 4 x + 5 / 4

(b)

slope : - 3 / 2

y-intercept: 1 / 2

Equation: y = - 3 / 2 x + 1 / 2  

<h3 />

<h3>Slope intercept equation</h3>
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where

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Therefore lets find the slope, y-intercept and equation of the following graph.

1.

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(0, 2)(1, 3)

m = 3 - 2 / 1 - 0 = 1

b = 2

y = x + 2

(b)

(0, -1)(-3, 0)

m = 0 + 1 / -3 - 0 = - 1 / 3

b = -1

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2.

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(1, 2)(-3, -1)

m = -1 - 2 / -3 - 1 = 3 / 4

2 = 3 / 4 (1) + b

b = 2 - 3 / 4  = 5 / 4

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3.

(b)

(-3, 5)(1, -1)

m = - 1 - 5 / 1 + 3 = - 6 / 4 = - 3 / 2

-1 = - 3 /2 (1) + b

b = -1 + 3 / 2 = 1 /2

y = - 3 / 2 x + 1 / 2  

learn more on y-intercept here: brainly.com/question/2833377?referrer=searchResults

6 0
3 years ago
Explain why the sum of two negative<br> integers is always less than each integer.
kykrilka [37]

Step-by-step explanation:

Because when we have 2 negatives there's no way to end up with a positive, its like mixing oil with water hope this helped

4 0
2 years ago
Simplify 7y+7-8(y-7)
Salsk061 [2.6K]

Answer:

-y + 63

Step-by-step explanation:

Let's start like by solving the order of operations, and then add our Y's:

7y + 7 + −8y + 56

Adding:

+63 - y

Simplifying:

-y + 63

Thus, our answer is -y + 63

8 0
3 years ago
Read 2 more answers
Find P(A or B), if events A and B are overlapping.
BlackZzzverrR [31]
The answer is 7/9

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P(A) = 11/18
P(B) = 5/18
<span>p(A and B) = 2/18
</span>P(A or B)  = 11/18 + 5/18 - 2/18 = (11 + 5 - 2)/18 = 14/18 = 7/9
6 0
4 years ago
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TEA [102]

Step-by-step explanation:

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<h2>be brainly</h2>

8 0
3 years ago
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