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babunello [35]
3 years ago
8

WILL GIVE BRAINEST which of these is a point slope equation of the line that is.....

Mathematics
1 answer:
gayaneshka [121]3 years ago
6 0
Y - 25 = 2(x-10)
y = 2x - 20 + 25
y = 2x + 5. slope = 2
perpendicular lines, slope is opposite and reciprocal
so slope of perpendicular line is -1/2

passing thru (-3, 7)
point slope form: y - y1 = m (x - x1)

equation
y - 7 = -1/2(x + 3)

answer
B. y - 7 = -1/2(x + 3)
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An office spends $375.00 per month on office supplies.
podryga [215]

Answer:

$51 saved.

Step-by-step explanation:

Well 12% of $425 is found by multiplying

(.12)(425) = $51 saved.

8 0
3 years ago
The total cost to rent 5 chairs and 3 tables is $27. The total cost to rent 2 chairs and 12 tables is $81. What is the cost to r
kati45 [8]

The cost to rent each chair is $1.5 and cost to rent each table is $6.5

<h3>Applications of systems of linear equations </h3>

From the question, we are to determine the cost to rent each chair and each table

Let c represent chair

and

t represent table

From the given information,

The total cost to rent 5 chairs and 3 tables is $27

That is,

5c + 3t = 27 ------------ (1)

Also,

The total cost to rent 2 chairs and 12 tables is $81

That is,

2c + 12t = 81 ---------- (2)

Now, solve the equations simultaneously

5c + 3t = 27 ------------ (1)

2c + 12t = 81 ---------- (2)

Multiply equation (1) by 2 and multiply equation (2) by 5

2 × [5c + 3t = 27 ]

5 × [2c + 12t = 81 ]

10c + 6t = 54        ------------- (3)

10c + 60t = 405   ------------- (4)

Subtract equation (4) from equation (3)

10c + 6t = 54        

10c + 60t = 405

---------------------------

-54t = -351

t = -351/-54

t = 6.5

Substitute the value of t into equation (2)
2c + 12t = 81

2c + 12(6.5) = 81

2c + 78 = 81

2c = 81 - 78

2c = 3

c = 3/2

c = 1.5

∴ The cost of chair is $1.5 and cost of table is $6.5

Hence, the cost to rent each chair is $1.5 and cost to rent each table is $6.5

Learn more on Solving system of linear equations here: brainly.com/question/13729904

#SPJ1

8 0
2 years ago
What is the value of x?
Elenna [48]

Answer:

The answer is 2.

This is because on the left side of the triangle, we can see that the original length is ten cm greater than the second variation. therefore, the other side would also be 10 cm greater than the other variation's side. 5(2)×10= 20, which keeps the triangle to scale.

If this answer was helpful please consider giving brainliest!

5 0
3 years ago
mrs. Hicks is buying donuts for her favorite class. the cost for the first dozen is $15. since she has more than 12 students she
Vlada [557]
C=15+X

C being the total cost. Starting at $15 plus an additional $1 (seen as X in the equation) for each student.
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3 years ago
Alex bought six books priced at $8 each he got a discount of 20% off the total cost how much did alex pay for the books write yo
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He has to pay $6.40 for all the books.
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4 years ago
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