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wariber [46]
3 years ago
12

Please help thx so much

Mathematics
1 answer:
Natali [406]3 years ago
4 0

Answer:

(- 1, 3)

Step-by-step explanation:

To find the y- coordinate, substitute x = - 1 into the equation

y - 3 = 2(x + 1) ( add 3 to both sides )

y = 2(x + 1) + 3 ← substitute x = - 1

y = 2(- 1 + 1) + 3 = (2 × 0) + 3 = 0 + 3 = 3

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The price of an item has risen to $91 today. yesterday it was $65 l. find the percentage increase
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Answer:

40%

Step-by-step explanation:

First you take $19 - $65 to get $26

Then: 26 ×100= 2600÷ 65= 40%

8 0
3 years ago
The equation y=1/3xis the boundary line for the inequality y>1/3x. Which sentence describes the graph of the inequality
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5 0
3 years ago
The price of gold has increased by 35% per year from 2000 in the year 2000 hairy bought a gold ring for $590 which of the follow
Lyrx [107]

Since the price is increasing by percentage, rather than a constant rate, we will be using the exponential equation format, which is y=ab^x (a = initial value, b = growth/decay)

Since the value was $590 in the year 2000, 590 will be our a variable.

Since the value is *increasing* by 35%, add 1 and 0.35 (35% in decimal form) together to get 1.35. 1.35 is going to be your b variable.

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3 0
3 years ago
James is six years older than lousie. Eight years from now, James will be 4 times older than loise was 4 years ago. What is the
weeeeeb [17]

Answer: 26 years.

Step-by-step explanation:

Let x = current age of Louise  (in years).

Then current  age of James =  x+6

Eight years from now, James's age = x+6+8= x+14

4 years ago, Louise's age = x-4

According to the question

x+14 = 4(x-4)

⇒ x+14 = 4x-16

⇒ 4x-x = 16+14

⇒ 3x = 30

⇒ x= 10 = current age of Louise  (in years).

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hence, the sum of the current ages is 26 years.

8 0
4 years ago
What is the slope of y-9=3(x-2)<br> A. 3<br> B. 1/2<br> C. 2<br> D. 1/9
pav-90 [236]

Answer:

A. 3

Step-by-step explanation:

y - 9 = 3(x-2)

y = 3x - 6 + 9

y = 3x + 3

slope is 3x = 3

8 0
3 years ago
Read 2 more answers
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