easy question: A train travels 30 miles in 1/3 of an hour. Whats is the trains average speed

Answer:

C:) 21.47 cm²

Step-by-step explanation:

A=wl=2.1 x 10.7=22.47

Answer:

-a - 8

Step-by-step explanation:

2a - 5 - (3a + 3)

2a - 5 - 3a - 3

-a - 8

I hope this helps!

Answer: Answer: a-2. Step-by-step explanation: 3a+3-2a-5. like terms must be together hence. 3a-2a=a. 3-5=-2. ans ;a-2.

Step-by-step explanation:

Answer:

Ecuador, Colombia, Brazil, Sao Tome & Principe,

Step-by-step explanation:

Answer:

Ecuador, Colombia, Brazil, Sao Tome & Principe

Step-by-step explanation:

Answer:

23/24

Step-by-step explanation:

5/8       1/3

15/24   8/24

       23/24

Answer:

23/24

Step-by-step explanation:

5/8       1/3

15/24   8/24

      23/24

Answer:

distance: 14

explanation:

[tex]\sf \sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]

given:

solve:

[tex]\sf \rightarrow \sqrt{(5-5)^2+(6--8)^2}[/tex]

[tex]\sf \rightarrow \sqrt{(0)^2+(14)^2}[/tex]

[tex]\sf \rightarrow \sqrt{14^2}[/tex]

[tex]\sf \rightarrow 14[/tex]

Solution:

We know that:

[tex]\text{Distance }=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}}[/tex]

Finding the coordinates

Substitute the coordinates into the distance formula.

[tex]\text{Distance }=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}}[/tex]

[tex]\rightarrow \text{Distance }=\sqrt{[(6- (-8)]^{2} +[5-5]^{2}}[/tex]

[tex]\rightarrow \text{Distance }=\sqrt{[(6 + 8]^{2} +[0]^{2}}[/tex]

[tex]\rightarrow \text{Distance }=\sqrt{[14]^{2}[/tex]

[tex]\rightarrow \boxed{\text{Distance }=14 \ \text{units}}[/tex]

Answer:

3x-x+2=4

Step-by-step explanation:

You replace y in the problem with 5 so you have 4x+3*5=8 then you multiply 3*5 and 15 then rewrite your problem so it looks like 4x+15=8 then add 15 to the side with the 8 so it looks like 4x=23 then divide 23 by 4 and you get x.

Answer:

y = 3/4x + 5

-3x + 4y = 20

Step-by-step explanation:

In order to write this equation, you need the slope and y-intercept (I'll answer in slope-intercept form and standard form)

First change that standard form equation to slope-intercept form:

1. 4x + 3y = 8

2. 3y = -4x + 8

3. y = -4/3x + 8/3

Step 1 is given.

In step 2, 4x was subtracted from both sides.

In step 3, both sides were divided by 3.

Slope-intercept form:

y = mx + b

m is the slope and b is the y-intercept.

m = 3/4; the slope of a line perpendicular to another line is the negative reciprocal of the other line's slope (ex: line's slope is 1/4; a line perpendicular to it has a slope of -4, the negative reciprocal)

b = 5; the y-intercept was stated in the problem

Now, you put it together: y = 3/4x + 5

Standard form:

You can just change the slope intercept form back into standard form by moving the numbers around a bit:

1. y = 3/4x + 5

2. -3/4x + y = 5

3. -3x + 4y = 20

Step 1 is given.

In step 2, 3/4x was subtracted from both sides of the equation.

In step 3, both sides were multiplied by 4 so that the equation could have nice whole numbers. (this step is optional, I just think it's easier to read this way)

Answer:

g = h(e-10)

Step-by-step explanation:

You can multiply the whole equation by h to get g by itself.

Answer:

you answer will be a binary number

Answer:

22.5

21

18.75

Step-by-step explanation:

days/money earnt

Answer: A.

Step-by-step explanation:

1/5+1/5+1/5

Answer:

Frieda should substitute 42 for z in the original equation, and simplify to see if it is a true statement. 42 + 22 = 64, so her solution is correct

Step-by-step explanation:

Answer:

The attached images

Step-by-step explanation:

Im smart  

Answer:

Step-by-step explanation:

Answer:

what is the question

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

..

Answer:

1400

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

You have to find a pattern that correlates to one of the options to get the key of the stem and leaf diagram. The pattern is the stem is multiplied by the leaf.

In the first one:

1*5=5

1*5=5

1*8=8

1*8=8

1*9=9

And so on

Answer:

16, then 20 inches

Step-by-step explanation:

Answer:

your answer is 9,42

Step-by-step explanation:

This is because if you follow the pattern:

5,38

6,39

7,40

8,41

9,42

so (9,42) is your answer

Step-by-step explanation:

In this question as two straight lines intersect each other

we use vertically opposite angle axiom

so 74 degree = 2x.

then x= 74/2= 37degree

Answer:

Angle 74 degrees and 2x are vertical, so they would have to equal each other.

Note: Vertical angles are congruent meaning they measure the same degrees

So we set up the equation;

74 = 2x

/2     /2

37° = x

Answer:

it is the same on the other side

Step-by-step explanation:

1 step out the g where the other g is on the line it is on but other side

2 put x on same line with y but other side

Answer:

10p - 30 = 40

Step-by-step explanation:

Apply distributive property of multiplication.

Answer:

i dont know

Step-by-step explanation:

Answer:

Team 1 -- 7

Team 2 -- 6

Step-by-step explanation:

The range is the difference between the highest and lowest values in a set of numbers. To find it, subtract the lowest number in the distribution from the highest.

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!

Answer:

1. A=18

2. A= 48

Step-by-step explanation:

1. Area = 1/2 x base x height

The base is 9 and the height is 4

1/2 x 9 x 4= 18

2. Area = L x W

The length is 12 the width is 4

12 x 4 = 48