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aev [14]
3 years ago
5

У = 3х + 1 у= 2х Using substitution

Mathematics
1 answer:
spin [16.1K]3 years ago
3 0

Answer: x = -2, y = -5

Step-by-step explanation: There you go btw wanna trade r o b l o x acc.

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18=x/3+6<br> A) 4<br> B)12<br> C)36<br> D)3
Vesna [10]

Answer:

36

Step-by-step explanation:

Flip your eq. x/3 + 6 = 18.

Solve (Number on one, variable on other)

+6 -6 = 0. 18-6=12.

Multiply.

12 * 3 = 36.

7 0
3 years ago
Read 2 more answers
Find an equation in standard form for the hyperbola with vertices at (0, ±9) and foci at (0, ±11)
Katen [24]

Answer:

\frac{y^{2} }{81} -\frac{x^{2} }{40} }=1 is standard equation of hyperbola with vertices at (0, ±9) and foci at (0, ±11).

Step-by-step explanation:

We have given the vertices at (0, ±9) and foci at (0, ±11).

Let (0,±a)  = (0,±9) and (0,±c)  = (0,±11)

The standard equation of parabola is:

\frac{y^{2} }{a^{2} } -\frac{x^{2} }{b^{2} }=1

From statement, a  = 9

c² = a²+b²

(11)²  = (9)²+b²

121-81  = b²

40  = b²

Putting the value of a² and b² in standard equation of parabola, we have

\frac{y^{2} }{81} -\frac{x^{2} }{40} }=1 which is the answer.

3 0
3 years ago
mike wants to rent a car for his vacation. the rental costs $125 a week plus $.15 a mile. how far can mike travel in a week if h
saw5 [17]

He can travel 500 miles if he spends $200.

Hope this helps :)

5 0
3 years ago
Jen wrote ten times as many pages of a school report as tom. They wrote 396 pages altogether. How many pages did each student wr
Lunna [17]

Let pages written by Tom for a school report = x

Pages written by Jen for school report= 10 x

Pages written by Tom + Pages written by Jen = 396

→ x  + 10 x = 396

→ 11 x =396

Dividing both sides by 11, we get

→ x =36,

Pages wrote by Tom= 36 pages

Pages wrote by Jen = 36 × 10=360 pages

3 0
3 years ago
a sector of a circle has a central angle measure of 60°, and an area of 14 sq inches, what is the area of the entire circle​
damaskus [11]

Answer:

The answer is below!!

Step-by-step explanation:

The formula used to find the area of a circlular sector - a pie-shaped part of a circle. ... π. 4. 2. ·. 86. 360. = 12.01. What the formulae are doing is taking the area of the whole ... So for example, if thecentral angle was 90°, then the sector would have an area equal to one ... r is the radius of the circleof which the sector is part.

Hope I Helped!!

:)

7 0
2 years ago
Read 2 more answers
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