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-Dominant- [34]
3 years ago
11

If 4x-3y =10, what is the value of 12x-9y?

Mathematics
1 answer:
kogti [31]3 years ago
7 0

12x - 9y is 3 times 4x-3y

(4x-3y * 3 = 12x - 9y)

just multiply 10 * 3 =

30 (value of 12x-9y)

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A random representative survey of 100 seventh-graders in Washington Middle School shows that 20 students read 5 or more books ov
DaniilM [7]

20 out of 100 read 5 or more.

20/100 = 0.2

Now multiply the total students by 0..2:

275 x 0.2 = 55

55 people read 5 or more books.

8 0
3 years ago
Please help!! Question is in the picture
weeeeeb [17]

Answer: (5,8)

Step-by-step explanation:

So this is a matter of using a system of linear equations

To start if a total of 13 people got a ticket then we know that

x+y=13

x and y being explained in the problem

then if adult tickets are $40 and children tickets are $20 and the total cost is 360 we can set up the next equation

40x+20y=360

<em>If you were to plug in 1 lets say into x that means that 1 person bought a ticket for $40 this shown by 40 (1) this is the same premise for the childrens tickets.</em>

now we have

x+y=13

40x+20y=360

now we can solve by eliminating one of the variables this is done by either getting rid of the x or y and solving for the other. I solved for the y value first this looks like

-40(x+y=13)

40x+20y=360

Distribute the -40 to each value

giving you

-40x-40y=-520

40x+20y=360

add these together from the top down

the x's cancel leaving

-20y=-160

then isolate the y value by dividing both sides by -20

-20y/-20=-160/-20

leaving you with your y point

y=8

This is how many childrens rickets were sold now we can plug into the first linear equation

x+8=13

now easy subtration to isolate the x point

x+8-8=13-8

x=5

Finally leaving you with point (5,8)

4 0
3 years ago
Read 2 more answers
You are given that claims are reported according to a homogeneous Poisson process. Starting from time zero, the expected waiting
maxonik [38]

Answer:

1.732

Step-by-step explanation:

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Hence average waiting time = mean = 3

This will also be equal to var(x)

Var(x) = mean of Poisson distribution= 3

Hence standard deviation = square root of variance

=\sqrt{3} \\=1.732

7 0
3 years ago
Which of the statements about this picture below are true? Choose all that apply.
Blizzard [7]

Answer: Second, Fourth and  Fifth options are correct.

Step-by-step explanation:

F is the incenter because F is the point of intersection of the three angle bisector of the triangle.

As we can see that the angle bisector divides the angles into equal angles.

So, F is the point of concurrency of the angle bisectors of the angle of the triangle.

F is equidistant from the three sides of the triangle.

Hence, Second ,Fourth, Fifth options are correct.

4 0
3 years ago
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Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule.
nlexa [21]

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6 0
3 years ago
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