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3 years ago

What is the mean of this data? 12, 18, 11, 25, 38, 22

Mathematics

1 answer:

yanalaym [24]3 years ago

3 0

Your answer is 21 for this one.

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Solve the system by elimination

dmitriy555 [2]

Answer:

Step-by-step explanation:

Given system is-

-2x+2y+3z=0 -------------(1)

-2x-y+z=-3 ----------------(2)

2x+3y+3z=5 --------------(3)

From (1)-(2) we get

3y+2z=3 ----------------(4)

Again from (2)+(3),

2y+4z=2 ----------------(5)

Now multiplying equation (4) by -2

-6y-4z=-6 --------------(6)

Adding (5) and (6)

-4y=-4

dividing by -4

y=-4 / -4

So, y=1 ,

using y=1 in (5)

2(1)+4z=2

or, 2+4z=2

or, 4z=2-2

or, 4z=0

or, z=0

using y=1 and z=0 in (3)

2x+3(1)+3(0)=5

or, 2x+3+0=5

or, 2x=5-3

or, 2x=2

or, x=2/2

So, the solution is-

(x,y,z)=(1 , 1 , 0)

3 0

3 years ago

A person ran at a constant rate of 5mph. How long does it take him to run 3 miles?

kogti [31]

Answer:

36 minutes

Step-by-step explanation:

60 / 5 = 12

12 x 3 = 36

3 0

2 years ago

(05.05)On a coordinate plane, the coordinates of vertices R and T for a polygon are R(−6, 2) and T(1, 2). What is the length of

ICE Princess25 [194]

Answer:

The length of Side RT of the polygon is $7\ units$

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

$R(-6,2)\\T(1,2)$

substitute the values

$d=\sqrt{(2-2)^{2}+(1+6)^{2}}$

$d=\sqrt{(0)^{2}+(7)^{2}}$

$dRT=7\ units$

8 0

3 years ago

Read 2 more answers

An animal shelter spends $2.50 per day to care for each bird and $4.00 per day to

Alex

Answer:

19 birds where there on Friday

4 0

3 years ago

The graph shows the relationship between the time in minutes and the number of milk cartons that Machine 1 can fill. The equatio

Klio2033 [76]

Answer:

A. 25, 22

B. machine 1

How much faster? MACHINE 1 fills 3 more cartons per minute than MACHINE 2

Step-by-step explanation:

4 0

3 years ago