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3 years ago

18x + 3y = -21 !!!!!!!!!!

Mathematics

2 answers:

Georgia [21]3 years ago

7 0

Answer:

x= -1/6 y + -7/6

Step-by-step explanation:

alekssr [168]3 years ago

5 0

18x+3y=-21

slope -intercept form: y=mx+b

move 18x to the other side

sign changes from +18x to -18x

18x-18x+3y=-18x-21

3y=-18x-21

divide both sides by 3 to find slope-intercept form

3y/3=-18x/3-21/3

y=-6x-7

answer: y=-6x-7

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there are 15 rafts available for people to use on the adventure river ride. each raft holds 12 people. the park runs this ride 3

3241004551 [841]

540 people can ride the wild river in 1 hour if all of the rafts are used and each raft is full

Solution:

Given, There are 15 rafts available for people to use on the adventure river ride.

Each raft holds 12 people.

Then, total people capacity over all rafts = 15 x 12 = 180 people.

The park runs this ride 3 times each hour.

We have to find how many people can ride the wild river in 1 hour if all of the rafts are used and each raft is full?

Then, total people count who take ride = number of rides x number of people per ride

= 3 x 180 = 540

Hence, 540 people can take ride in 1 hour.

6 0

3 years ago

Passing through (2, - 2) and perpendicular to the line whose equation is y= 5x+2

jonny [76]

Step-by-step explanation:

Hey there!!!

Here,

Given, A line passes through point (2,-2) and is perpendicular to the y= 5x+2.

The equation of a straight line passing through point is,

$(y - y1) = m1(x - x1)$

Now, put all values.

$(y + 2) = m1(x - 2)$

It is the 1st equation.

Another equation is;

y = 5x +2........(2nd equation).

Now, Comparing it with y = mx + c, we get;

m2=5

As per the condition of perpendicular lines,

m1×m2= -1

m1 × 5 = -1

Therefore, m2= -1/5.

Keeping the value of m1 in 1st equation.

$(y + 2) = \frac{ - 1}{5} (x - 2)$

Simplify them.

$5(y + 2) = - x + 2$

$5y + 10 = - x + 2$

$x + 5y + 8 = 0$

Therefore the required equation is x+5y+8= 0.

Hope it helps...

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3 years ago

Find the h.c.f by prime factorization method 27, 30

Orlov [11]

Answer:

Find it yourself . you must try yourself. rate me plzs

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3 years ago

What is 5/18 + 7/12?

Flauer [41]

5/18+7/12

=10/36+21/36

=31/36

8 0

3 years ago

Read 2 more answers

Trình bày khái niệm và cách giải phương trình bậc nhất 1 ẩn, hệ phương trình bậc nhất 2 ẩn

AysviL [449]

English please.......,.

8 0

3 years ago