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FromTheMoon [43]
2 years ago
9

Is the ordered pair (5,2) a solution to the equation x+2y=9. Explain.

Mathematics
1 answer:
valina [46]2 years ago
5 0

Answer:

Yes.

Step-by-step explanation:

You are going to put the y coordinate where the y is in the problem.

Ex. x+2(2)=9

Now you will have x+4=9

The you'll put the x coordinate where the x is in the problem.

Ex. 5+4=9

5+4=9 is correct, so yes it is the solution to the equation.

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Answer is 20, hope this helps BRAINLIEST?
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one number is 6 more than the other number. also, 7 times the smaller number is equal to 6 times the larger number. find the two
densk [106]

Answer:

x = 36; y = 42

Step-by-step explanation:

x+6 = y

7x = 6y

7x = 6(x+6)

7x = 6x+36

-6x  -6x

x = 36

_________

y = 36+6

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2 years ago
emma made a rectangular picture frame with the height of 25 5/6 inches .the frame is 5 2/3 inches wide .what is the height of th
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3 years ago
What is the slope-intercept form of the equation of the line perpendicular to y = -x + 10 and passing throught the point (-2,7)?
notka56 [123]

Answer:

The slope-intercept form equation of the line perpendicular to y =  -\frac{1}{2} x + 10 and passes through point (-2, 7) is y = 2x + 11 ⇒ Not in the choices

Step-by-step explanation:

The slope-intercept form of the linear equation is y = m x + b, where

  • m is the slope
  • b is the y-intercept

The product of the slopes of the perpendicular lines is -1, if the slope of one is m, then the slope of the other is -\frac{1}{m}

  • To find the slope of the perpendicular line to a given line reciprocal the slope of the given line and change its sign

∵ The equation of the given line is y = -\frac{1}{2} x + 10

→ Compare it with the form of the equation above

∴ m =  -\frac{1}{2}

→ Reciprocal it and change its sign to get the slope of the ⊥ line

∴ m⊥ = 2

→ Substitute in the form of the equation above

∴ y = 2x + b

→ To find b substitute x and y in the equation by the coordinates of

   a point on the line

∵ The line passes through the point (-2, 7)

∴ x = -2 and y = 7

∵ 7 = 2(-2) + b

∴ 7 = -4 + b

→ Add 4 to both sides to find b

∵ 7 + 4 = -4 + 4 + b

∴ 11 = b

→ Substitute it in the equation

∴ y = 2x + 11

The slope-intercept form equation of the line perpendicular to y =  -\frac{1}{2} x + 10 and passes through point (-2, 7) is y = 2x + 11

<u><em>Note:</em></u> The answer is not in the choices

6 0
2 years ago
Find y.<br> Round to the nearest tenth.
wlad13 [49]

Answer:

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658.254262871 ft -->

658.3 ft

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3 years ago
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