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3 years ago

Cheryl is moving to a new house. Her old house is 3 km from her new house. How many

Mathematics

2 answers:

ANTONII [103]3 years ago

6 0

Answer:

3,000 meters

Step-by-step explanation:

recall that 1 kilometer = 1,000 meters

hence

3 kilometers = 1,000 meters x 3 = 3,000 meters

Mumz [18]3 years ago

3 0

It should be 3000 meters

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Need an answer fast!!!

trapecia [35]

Answer:

The length of the line segment is of 5.9 units.

Step-by-step explanation:

Distance between two points:

Suppose that we have two points, $(x_1,y_1)$ and $(x_2,y_2)$ . The distance between these two points is given by:

$D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

How long is the line segment?

The distance between points P and Q. So

P(1,3), and Q(4,8).

$D = \sqrt{(4-1)^2+(8-3)^2} = \sqrt{3^2 + 5^2} = \sqrt{34} = 5.9$

The length of the line segment is of 5.9 units.

4 0

3 years ago

57 is 13.5% of what number?

kondaur [170]

Let, the number = x
It would be: x * 0.135 = 57
x = 57 / 0.135
x = 422.23

Hope this helps!

6 0

3 years ago

Please help me I’m currently failing this class ills really appreciate it

Ganezh [65]

Answer:

Question 1:

(3)

x 3 5 7 9

f(x) 2 4 2 4

Question 2:

(2) whole numbers

Step-by-step explanation:

In a function, each x-value must only have 1 y-value, but a y-value can have multiple x-values.

A whole number is any positive number that is not a fraction. You cannot have negative devices nor a fraction of a device.

3 0

2 years ago

Find the solution set (x,y,z) of the system:<br> 3x-2y+4z=6<br> 2y-3z=20<br> 6z=12

gizmo_the_mogwai [7]

Answer:

The solution is x = 8, y = 13 and z = 2.

Step-by-step explanation:

We are given a system of equations with the variables x, y, and z from which we have to solve for x, y, and z.

The equations are

3x - 2y + 4z = 6 ........ (1)

2y - 3z = 20 .......... (2)

6z = 12 ......... (3)

Now, from equation (3), we get z = 2.

Now, putting z = 2 in equation (2) we get

2y = 20 + 6 = 26

⇒ y = 13

Now, from equation (1), putting y = 13 and z = 2, we get

3x = 6 - (4 × 2) + (2 × 13) = 24

⇒ x = 8

So the solution is x = 8, y = 13 and z = 2. (Answer)

4 0

3 years ago

The rate (in liters per minute) at which water drains from a tank is recorded at half-minute intervals. Use the average of the l

kvv77 [185]

Answer:

100.75 liters

Step-by-step explanation:

Data provided in the question:

t (min) 0 0.5 1 1.5 2 2.5 3

r (l/min) 44 40 37 34 30 27 23

Now,

left endpoint approximation

= 0.5 × ( 44 + 40 + 37 + 34 + 30 + 27 )

= 0.5 × 212

= 106

Right endpoint approximation

= 0.5 × ( 40 + 37 + 34 + 30 + 27 + 23 )

= 0.5 × 191

= 95.5

Therefore,

the average of the left- and right-endpoint approximations

= [ 106 + 95.5 ] ÷ 2

= 100.75 liters

3 0

3 years ago