Mathematics High School

9. If a train travels 270 mi. in 9 hr., what is its average speed?
20 mph
O
30 mph
d
40 mph
50 mph

Answers

Answer 1

Answer:

30 miles per hour

Step-by-step explanation:

You divide the distance by time to receive the average speed.

270 / 9 = 30

Answer 2

Answer:

The train travels 30 miles in 1 hour

Step-by-step explanation:

First, you take the miles and divided it by the hours. That will give you the average speed/MPH (miles per hour)

Related Questions

Pls help I suck at math I did understand but completely forgot after like 2 hours help

Answers

Answer:

2¾

Step-by-step explanation:

(1/5 + 1/2)² + 3/10 × 5

= (7/10)² + 3/10 × 5

= 7/10 × 7/10 + 3/10 × 5/1

= 49/100 + 15/10

= 49/20 + 3/10

= 49 + 6 = 55/20

= 2 15/20 = 2¾

What is the distance between the points (−3, −5) and (−3, −7) ?




2 units

4 units

12 units

10 units

Answers

Step-by-step explanation:

d = √(x2-x1)²+(y2-y1)²

d = √(-3-(-3))²+(-7-(-5))²

d = √ 0+(-2)²

d = √4

d = 2 units

Help please this is for geometry. its easy.

Answers

Answer:

Step-by-step explanation:

ccadcdddddddddddddddddddddddd

Subtract 131% from 100%.

Answers

Answer:

-31%

Step-by-step explanation:

100 - 131 = -31

Find the mean rounded to the nearest tenth median mode and range 45,43,40,41,39,40,47,40

Answers

Answer:

mean- 41.9

median- 45.5

mode- 40

range- 43

Step-by-step explanation:

Can someone help me do this

Answers

Answer:

5x +2 = 87

So X = 17

3y = 42

So Y = 14

Plz help it’s due tonight!!!

Answers

D. Is the ans
Please mark me as Brainliest

someone pkease help me ;-;
What is the length of DE
A. 18
B. 12
C. 10
D. 22

Answers

Answer:

the length of DE is A) 18

Step-by-step explanation:

these triangles are similar so you need to create a proportion!

since sides DF and FE are the same, it means that AC and CB are the same!

now we have to find the hypotenuse for DE, which is X

- set up a proportion!

side AC/side AB = side DF/side DE ----> 15/27 = 10/x

- butterfly multiply to get 15x = 270

- divide both sides by 15 to isolate x

now you get --------> x = 18!

comment or message me if you are still confused or have a question!

what divided by 25 = 4.8?

Answers

Answer:

120/25 = 4.8

Step-by-step explanation:

To set up the equation you would do this-

[tex]\frac{4.8}{1} =\frac{x}{25} \\[/tex]

Then cross multiply (multiply 4.8 by 25 and x by 1)

[tex]4.8(25) = x(1)\\120 = x[/tex]

Using the function y=x+7 find the output for the input x= 3

Answers

Answer:

10

Step-by-step explanation:

y=(x=3)+7

y=3+7 add

y=10

2/3x - 5 = 3/4
Rewrite the equation above so that it does not have fractions. Do not use decimals in your answer.

Answers

Answer:

I don't know what i do not know

2. Given f(x) = -2x2 - 5, find f(-4).

Answers

Given the function, f(x) = -2x^2 - 5: to evaluate f(-4), you must substitute the value of x = -4 as input into the function.

f(x) = -2x^2 - 5

f(-4) = -2(-4)^2 - 5

f(-4) = -2(16) - 5

f(-4) = -32 - 5

f(-4) = -37

Therefore, f(-4) = -37

Please mark my answers as the Brainliest if you find my explanations/solution helpful :)

[tex]\sf 16\times 6\times 11[/tex]

Answers

Answer:

1,056

Step-by-step explanation:

16 x 6 = 96

96 x 11 = 1,056

Hey there!

16 * 6 * 11

16 * 6

= 16 + 16 + 16 + 16 + 16 + 16

= 32 + 32 + 32

= 64 + 32

= 96

= 96 * 11

= 96 * 11

= 96 + 96 + 96 + 96 + 96 + 96 + 96 + 96 + 96 + 96 + 96

= 192 + 192 + 192 + 192 + 192 + 96

= 384 + 384 + 288

= 768 + 288

= 1,056

Therefore, your answer is: 1,056

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

What would be the nearest thousand in this Equation 7277

Answers

7000 Hope this helps.

What is 695.5 rounded to the nearest whole number?

Answers

Answer:           696

Step-by-step explanation:

Each side of a square patio is 10.5 feet. The patio is made up of 1.5 foot by 1.5-foot square stones. What is the number of stones in the patio? Look at the solution below.
Does it include all the steps needed to solve the problem? Explain

10.5 x 10.5 = 110.25 PLZ SOLVE THE PROBLEM
110.25 ÷ 1.5 = 73.5

Answers

The steps your teacher gave you are on the right track, but not quite 100% correct.

The first line has us find the area of the entire patio. That area being 110.25 square feet.

The next step is to find the area of each stone. That would be 1.5 x 1.5 = 2.25 square feet.

Therefore, the patio is made up of 110.25 ÷ 2.25 = 49 tiles

When arranged into a square, we'll have a 7 by 7 square set of stone tiles. Notice how 7 x 7 = 49.

what is 46+56+3+17+30=

Answers

Answer:

The answer to your question is 152

Step-by-step explanation:

46+56+3+17+30= 152

I hope this helps!

Answer:

152

Step-by-step explanation:

46+56= 102. 102+3= 105. 105+17= 122. 122+30= 152

a substance is kept at -3. 1*F it's temperature is raised by 2.5 what is the new temperature

Answers

Answer:

.6 degrees

Step-by-step explanation:

-3.1+2.5=.6

a janpanese chin is a small dog that weight 7 pound how many ounces is 7 pounds

Answers

Answer:

112 ounces

Step-by-step explanation:

1 pound = 16 ounces

We are converting 7 pounds to ounces

7 × 16 = 112

can someone please help?

Answers

Answer:

x equals to 6

Step-by-step explanation:

the angles not touching the outer angle equals it

onah bicycled 12 miles in 4 hours. What is the unit rate

Answers

Answer:

Miles per hour

Step-by-step explanation:

And if you want to know the speed it's 3 miles per hour.

Write the decimal as a fraction or mixed number in simplest form.
-2.36 repeating

Answers

Answer:

37/2

Step-by-step explanation:

since its a repeating 36 would become a 37 and the 2 would become the denominator

Need answers with explanation

Answers

Step-by-step explanation:

i guess it helps..if yuh need step by step explanation.comment i try to explain in worda

angle 1 and angle 2 form a linear pair. if m angle 1= x + 47, and m angle 2 = x-12 find the measure of angle 1

Answers

Answer:

215/2

Step-by-step explanation:

A linear pair means that the angles equal 180 degrees.

If added together 1 and 2 equal to 180 degrees, then the equation should be x+47+x-12=180. Then solve and simplify.

x+47+x-12=180

2x-35=180

2x=215

x=215/2

this might be a waste of time but. 1-6 :)

Answers

Answer:

Step-by-step explanation:

1. 6 yd

2. 32 oz

3. 51.2 fl oz

4. 10560 ft

5. 2.5 T

6. Quarts to what??? Pints???


Is -1/3 - 4/5 positive, negative, or zero?
HELP PLS ILL GIVE BRAINLIEST FOR THE CORRECT ANSWER

Answers

Answer:

Negative, -17/15

Step-by-step explanation:

Determine the measure of the indicated
exterior angle in the diagram.

Answers

Answer: 110 degrees

Triangle sum theory tells us that all the internal angles are equal to 180.

Meaning, we can solve 2x+3x+3x+4=180 for x

x=22

Then solve for 3x+4, which equals 70.

Last step, take 70 from 180 to find the external angle!

110 :)

Answer:

Exterior angle is equal to 110

Step-by-step explanation:

So to find the exterior angle, you must find the interior angle first.

You know that all 3 angles within the triangle must equal to 180 degrees, so what we can do is set up this equation to reflect that statement:

2x+3x+(3x+4) = 180

Group like terms:

8x+4=180

Solve for x:

8x = 176

x = 22

We can double check to see this matches up with all of the other angles inside:

2x = 44

3x = 66

3x+4 = 70

44 + 66 + 70 = 180

We also know that a straight line is 180 degrees

So, ? = 180 - 70

? = 110 degrees

17
3. Kenny can type 75 words in 3 minutes. What is the constant of
proportionality that relates the number of words, y, to the number of
minutes, x?

Answers

Answer:

25

Step-by-step explanation:

Let this relationship be:

y = kx, where y is the number of words in x minutes.

Use the given numbers to find the value of k:

75 = 3kk = 75/3k = 25

help me find what 8/9​

Answers

Answer: B= 8÷9

I found this answer because if you divide 8 and 9 the 8 stays the same and the 9 turns into 1/9 and if you multiply 8 × 1/9 you will get 8/9.

I hope this helps! :)

Hey there!

To find the answer to a fraction to convert it to a decimal you have to DIVIDE to NUMERATOR (the TOP number) from the DENOMINATOR (the BOTTOM number) and it should give you your result to this given question

Option A doesn’t have anything to do with 8/9 because the question isn’t asking what is equivalent to eight divided one-ninths.

Option B. could possibly be your answer because it is asking what is equivalent to 8/9

Option C. also doesn’t have anything to do with 8/9 because the question isn’t asking what it is equivalent to nine divided one-eighths. 9 1/8 =

Option D. as well doesn’t have to do with 8/9 because the equation isn’t 9/8 so you can’t divided 9 from 8

Based on the information we have now. We can answer the question.

Possible answer: Option B. 8 ÷ 9

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

What is the slope of the line that passes through the points (-10, -4)(−10,−4) and (10, -29) ?(10,−29)? Write your answer in simplest form.

Answers

Answer:

hope you like my answer its -42.7

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