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pochemuha
3 years ago
13

Rob who has 13 girls phone number that are in his homeroom has 3 more than half the number that jay has what is the algebraic eq

uation
Mathematics
1 answer:
Vikki [24]3 years ago
8 0
Well Jay has 20 phone numbers. 
20j=13r-3x2 im not sure but i hope that helped a little.
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How do I figure the equation out
Tatiana [17]

Answer:

<em><u>Answer for Parallel line:</u></em> y = 3x - 13

<em><u>Answer for Perpendicular line: </u></em>y = (-1/3)x +17/3

Step-by-step explanation:

<em><u>Parallel line</u></em>

For the slope of a line parallel to another (given) line, just read the slope of the given line. It (in this case) is the coefficient in front of the x.

m = 3

So far what you have is y = 3x + b

To find b, use the given point (2,5)

x = 2

y = 5  Substitute these values into the skeletal equation. y = 3x + b

2 = 3*5 + b     Subtract 15 from both sides.

2 = 15 + b

2 - 15 = b switch sides

b = - 13

Answer y = 3x - 13

Part B

<em><u>Perpendicular line</u></em>

The perpendicular line will have a slope determined by the following formula

m1 * m2 = - 1

m1 is the slope of the given line which is 3

3 * m2 = - 1

m2 = - 1/3

So far, what you have is

y = (-1/3)x + b To find b, use the same 2 givens as above.

y = 5

x = 2

Substitute into the skeletal equation.

5 = (-1/3)(2) + b

5 = -2/3  + b  Switch sides.  

b - 2/3 = 5  Add 2/3 to both sides.

b = 5 + 2/3

b = 5 2/3 = 17 / 3

Answer

y = (-1/3)x + 17/3

If this doesn't seem right, and you have choices, could you please list them?

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3 years ago
a local park is shaped like a square with sides 6 meters long. A circular splash fountain is being placed in the middle of the p
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Answer: 624 Square meters

Step-by-step explanation:

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A cylindrical tank is filled with 66.85 mm3 of fuel. The area of the base of the cylinder is 15 mm2. What is the height of the f
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Volume = (Area of the base)x(Height)
66.85 = 15(H)
66.85/15 = H
H = 4.4567

The height is 4.4567mm.
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3 years ago
A line segment has the endpoints P(0, –6) and Q(–3, –7). Find the coordinates of its midpoint M.
rewona [7]

Answer:

i dont know.

Step-by-step explanation:

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2 years ago
Naomi plans to attend a four-year college that costs a total of $21,800 per year. Her family invests $9,500 in an account that e
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Answer:

yes

Step-by-step explanation:

i just did 450 times 12 times 5

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5= how many years

4 0
2 years ago
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