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3 years ago

Devaughn is 12 years younger than sydney. the sum of thier ages is 50 what is syndys age?

Mathematics

2 answers:

likoan [24]3 years ago

7 0

Answer:

Step-by-step explanation:

50/2

25 25

13 25

+12

25 25

oee [108]3 years ago

7 0

Answer:

Devaughn is 12 years younger then sydney.

Step-by-step explanation:

Devaughn is 12 years younger then sydney.

THEIR** Ages together equal 50 in total.

So 38 would have to be Devaughn's age while Sydney's age would be 50.

38+12= 50

The sum needed to be 50 so the sum is 50 and Devaughn is 12 years younger.

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Answers and work for answers please

larisa [96]

Answer:

1) 5 2) 6 3) 1.25 or -1.75

Step-by-step explanation:

1. x^2 - 25 = 0

x^2 - 25 = 0

First, add 25 to both sides!

x^2 = 25

Now square root both sides.

x = 5

2. (x-2)^2 = 16

First, square root both sides.

(x-2) = 4

Add 2 on both sides.

(x) = 6

x = 6

3. Quadratic Formula = -b ± $\sqrt{b^{2}-4ac }$ / 2a

Substitute in:

-6 ± $\sqrt{7^{2} -4(2)(6)}$ / 2(2)

-6± $\sqrt{49 - 48}$ / 4

Both forms:

-6 + $\sqrt{1}$ / 4

5 / 4 = 1.25

Negative:

-6 - 1 / 4

-7 / 4 = -1.75

8 0

2 years ago

Will mark brainliest

castortr0y [4]

4.1x + 29 is the correct answer

8 0

2 years ago

Give an equation of a line that is parallel to −3x + 7y =4. Explain why your line is parallel to the given line and how you arri

koban [17]

Answer:

3x -7y = 0

Step-by-step explanation:

Parallel lines have the same slope.

Changing the constant in a linear equation like this only changes the y-intercept. It has no effect on the slope of the line. So, we can change the constant from 4 to 0 and we will have a line with the same slope, parallel to the original, but with a different y-intercept.

The "standard form" of the equation of a line has the leading coefficient positive. We can make that be the case by using the multiplication property of equality, multiplying both sides of the equation by -1.

Parallel line:

-3x +7y = 0

In standard form:

3x -7y = 0