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Pavlova-9 [17]
3 years ago
10

.

Mathematics
2 answers:
pishuonlain [190]3 years ago
8 0

Answer: 2x + 5y = -5

Step-by-step explanation:

Two lines are said to be parallel if they have the same slope.

The equation of the line given :

2x + 5y = 10

To find the slope , we will write it in the form y = mx + c , where m is the slope and c is the y - intercept.

2x + 5y = 10

5y = -2x + 10

y = -2/5x + 10/5

y = -2/5x + 2

This means that the slope is -2/5 ,the line that is parallel to this line will also have a slope of -2/5.

using the formula:

y-y_{1} = m (x-x_{1} ) to find the equation of the line , we have

y - 1 = -2/5(x -{-5})

y - 1 = -2/5 ( x + 5 )

5y - 5 = -2 ( x + 5 )

5y - 5 = -2x - 10

5y + 2x = -10 + 5

therefore :

2x + 5y = -5 is the equation of the line that is parallel to 2x + 5y = 10

Kryger [21]3 years ago
8 0

Answer: 2x + 5y = -5

Step-by-step explanation:please see attachment for explanation

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Use the value of the ratio to determine which ratios are equivalent to 7: 15.
Alexandra [31]

Answer:

a. 21: 45

d. 63: 135

Step-by-step explanation:

Ratio or Relationship of two quantities is the result of comparing two quantities.

Such a comparison could be indicated as a reason, in four different ways, in this way:

1)a: b

2)a ÷ b

3)a/b

d)The reason for a is a b.

Equivalent ratios can be used to show the same relationship between two quantities. Remember that the word "equivalent" means the same.

Problem development

We observe what are the equivalent relationships 7:15 and conclude that they are the following:

a.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 3:

21: 45 = 21/45 = 21÷3 /45÷3 = 7/15

d.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 9:

63: 135= 63/135 = 63÷9 /135÷9= 7/15

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3 years ago
PLEASE HELP !
adell [148]
First what you wanna do is get y by it’s self. To do that is to first add 5 on each side.

-5+3y=-4
+5 +5

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Than you divide 3 on each side and it would give you y=1/3 if it’s a fractions problem but if you looking for decimals you would have to divide 1 by 3 which gets you .33333333.
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Read 2 more answers
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