Mathematics Middle School

ASAP PLZZZZZZZZ HELP _____________ waves need a medium to travel, but _____________ waves do not.

Group of answer choices

sound; light

sound; electrical

light; sound

electrical; light

Answers

Answer 1
the answer would be sound, light

brainliest is appreciated!
Answer 2

Answer:

Sound waves need a medium to travel, but light waves do not.

Step-by-step explanation:

Sound waves need a medium to travel because they cannot travel through a vacuum. This is because sound travels by producing vibration in the molecules of the medium surrounding it and there are virtually no molecules in a vacuum. Light doesn't need a medium through which to travel because the speed of light is experimentally constant.

Related Questions

48 decreased by a number
turn phrase into alegrabralc expression

Answers

Answer:

48-x

Step-by-step explanation:

Decreased means subtraction

Let x be the unknown number

48-x

The answer to this is 48-x !!

4.0374 ÷1.8 =0.2243
Is this solution correct?
If yes, tell me the steps to support your decision.
If no, describe the error(s) that Jordan made AND tell me the correct solution
PLEASE AND THANK YOU :C

Answers

Answer:

False

Step-by-step explanation:

the left side 2.243 does not equal to the right side 0.2243,which means that the given statement is false

and i am correct trust me :).

Write an expression that represents the difference of y and 32, plus the product of y and 4


12 points for the answer

Answers

The answer is: (y-32) + 4y.
Hope it helped!
the answer is (y-32) + 4y .

Launch Problem 1
Nikki spent 2/5 of her birthday money on new shoes and 1/4 of her
birthday money on a new headband
1. What is the LEAST common multiple denominator?
Question 2
1 pts

Answers

the answer is 20! 2/5=8/20 and 1/4=5/20! hope this helped!

how would you solve -5(x - 1) = 40

Answers

you would distribute the -5 to the x and the -1, so it would be:
-5x+5=40
you would then subtract 5 from both sides, so you would get:
-5x=35
you would then divide by -5 on both sides, so you would get:
x=-7

Answer:

x = -7

Step-by-step explanation:

Apply the distributed property: -5x - -5 = 40Simplify: -5x + 5 = 40Subtract 5 from each side, so it now looks like this: -5x = 35Divide each side by -5 to cancel out the -5 next to x. It should now look like this: x = -7

I hope this helps!

PLA HELP MEEEEEEEEEEEEEEEEE

Answers

Maybe this might help :)

The sequence below shows the number bacteria Arjun observed each hour for a science experiment:
5, 20, 80, 320,1,280,..
Which recursive function describes the number of bacteria observed at the nth hour?

Answers

Answer:

Hope this helps!

Step-by-step explanation:

Hope this helps


See screen shot :)

what is 257x50=


what is the anserw

Answers

Answer:

12,850

Step-by-step explanation:

The answer is 12,850

PLEASE HELP A GIRL OUT!!

Answers

Answer:

C

Step-by-step explanation:

It is C because the question asks for 1/4th of the wholw angle =45 degrees

hope this helps

Answer:

I think its c

Step-by-step explanation:

HELP ME PLEASE! I NEED HELP, ASAP! THX

Answers

Answer:

6

Step-by-step explanation: so 3x2 is 6 because you have 2 color and 3 different options of shirts.

Answer:

5

Step-by-step explanation:

I need help asap pls

Answers

Answer: Its B

Step-by-step explanation: Hope this helps you

Correct it is c. I also double checked.

rewrite this expression using a positive exponent. 1/2^-6

Answers

64is the answer hopefully it will be correct

A rectangular cardboard has dimensions as shown. The length of the cardboard can be found by dividing its area by its width. What is the length of the cardboard in inches?

Rectangle with width labeled on the right, width equals 4 and 1 over 2 inches. Below the rectangle, it says, length equals question mark. Inside the rectangle, it says area equals 36 and 3 over 4 square inches.

8 and 1 over 6
9 and 3 over 4
32 and 11 over 20
154 and 7 over 20

Answers

I just did this..............
Try 8 1/6 If it’s wrong don’t hesitate to message me if it is. I will gladly fix my answer

There is 1/3 gallon of water in a 3-gallon container. Write a multiplication AND a division equation to represent the situation.

Answers

Answer:

1/3

Step-by-step explanation:

1×3÷3=1/3

Answer:

1/3

Step-by-step explanation:

ILL GIVE U A BRAILYEST IF U EXPLAIN AND ANSWERRRR

Answers

Answer:

Step-by-step explanation:

since the scale is 15 feet for every 2 inches and the scale model length is 3:  

3/2 = 1.5

multiply 1.5 to 15 feet: 22.5

answer is 22.5

Answer:

22.5

Step-by-step explanation:

2 in.=15 this is the scale as a ratio

1 in.=7.5  by dividing by 2 you can find what one inch would represent int he scale model

3 in.=22.5  by multiplying by 3 you find how many 3 inches in the scale model represents.

NOONE IS HELPING ME, THIS IS FOR A GRADE

Answers

Answer:

first one is 57.5 and the  and the second one is 115

Step-by-step explanation:

second one is 115. dont know the first but eee tuff im sorry bro

help plsssssssssssssssss

Answers

Answer:

a. 36

b. 4

c. -11

d. 2

e. -20

Step-by-step explanation:

20 + 16 = 36

20 + (-16)

20 - 16 = 4

5 + (-16)

5 - 16 = -11

-9 + 11

11 - 9 = 2

-9 + (-11)

-9 - 11 = -20

1:What is the value of x

2:what is the measure of angle KJL?

Hurry pls WILL GIVE BRAINLEST

Answers

Answer: x=6

Step-by-step explanation:

Those two angles are supplementary, so added together, they will equal 180.

That being said,

23x+3+6x+3=180

29x+6=180

29x=174

x=6

is the equation. By solving that, you get

x=6

Solve this question.

Answers

i cant see the picture but i need pointss lamaa
Fr same here I need points

8=f-(13-2)
???? help

Answers

Answer:

I got you

Step-by-step explanation:

f= 19

Simplifying
8 = F + -1(13 + -2)

Combine like terms: 13 + -2 = 11
8 = F + -1(11)

Multiply -1 * 11
8 = F + -11

Reorder the terms:
8 = -11 + F

Solving
8 = -11 + F

Solving for variable 'F'.

Move all terms containing F to the left, all other terms to the right.

Add '-1F' to each side of the equation.
8 + -1F = -11 + F + -1F

Combine like terms: F + -1F = 0
8 + -1F = -11 + 0
8 + -1F = -11

Add '-8' to each side of the equation.
8 + -8 + -1F = -11 + -8

Combine like terms: 8 + -8 = 0
0 + -1F = -11 + -8
-1F = -11 + -8

Combine like terms: -11 + -8 = -19
-1F = -19

Divide each side by '-1'.
F = 19

Simplifying
F = 19

What does it mean to listen ACTIVELY? Give a definition (in your words) and an example.

(THIS IS FOR MUSIC)

Answers

Answer:

Paying attention to what the other person is saying.

Step-by-step explanation:

I think listening actively means that you are devoting your full attention to one person and focusing on what they are saying (or in the case of music paying attention to notes/lines/rhythms and mimicking them)

To pay attention to someone or something.

precipitation is moisture that falls as rain or snow. There is a relationship between the depth of rain, r, and the depth of snow, s. Equal quantities of precipitation result in the relationship r/s = 0.1.
a) 15.5 cm of snow falls in a storm. If it was a warm day, how much rain would that represent?
r/s = 0.1

ASAP WITH EXPLANATION !!!!!!

Answers

Answer:

I believe the answer would be 1.55

Step-by-step explanation:

Wouldn't you just multiply the amount of snow with 0.1

it would be 1.55cm of rain. you would multiply the 15.5 and the 0.1 to get 1.55

first correct answer gets braniliest

Which is the solution to the inequality?

Y + 15 < 3

y less-than negative 12
y greater-than negative 12
y less-than 18
y greater-than 18

Answers

Y = less than 18.

If you want me to explain I can in the comments

First-person to get this right with an explanation gets Brainliest

Elena has some bottles of water that each holds 17 fluid ounces. A. Write an equation that relates the number of bottles of water (x) to the total volume of water (y)in fluid ounces. B. How much water is in 51 bottles? C. How many bottles does it take to hold 51 fluid ounces of water?

Answers

Answer:

17b

Step-by-step explanation:

Total volume of water = amount of water in each bottle x total number of bottles. The equation that relates the number of bottle of water (b) to the total volume of the water (w) in fluid ounces is w = 17b

Answer:

A. y = 17x

B. 867 fluid ounces

C. 3 bottles

Step-by-step explanation:

There are few bottles of water that each contain 17 fluid ounces of water.

A. If the number of bottles is given by x and the total volume of water those bottles contain is y in fluid ounces, then the equation that relates x and y is  

y = 17x ...... (1) (Answer)

B. If x =51, then the volume of water in 51 bottles will be given by equation (1) as  

y = 51 × 17 = 867 fluid ounces. (Answer)

C. If y = 51 fluid ounces, then from equation (1), the number of bottles will be given by x = 51/17 =3 bottles. (Answer)

The difference between a number р and 6 is –14.

Answers

Answer is -20. Do you want the step by step solution?
equation: p - 6 = -14
solution: -8

PLEASE HELP ME WITH THESE I'LL GIVE BRAINLIEST

Answers

Answer: 42

Step-by-step explanation:

Find five solutions for the linear equations -x+3/4 y=-6, and plot the solutions as points on a coordinate plane. please help me with this

Answers

The answer should be 1=1-45+78/=r’d

Quick! Will give brainliest!

Answers

b= -3
m= 2
y= 2x-3
Hope this helps!

Answer:

b = -3

m = 3/2

equation: [tex]y = \frac{3}{2} x - 3[/tex]

Step-by-step explanation:

b is the y-intercept, or where the line meets the y-axis.

m is the slope. rise/run = 3/2

equation - im assuming you wanted slope-intercept form (y=mx+b)

put 2/3 5/7 16/21 in order from least to greatest

Answers

Answer:

5/7, 2/3, and 16/21

Step-by-step explanation:

If you put them all under the same denominator you will get 2/3=14/21, 5/7= 10/21, and 16/21. And if you put them in order it is 10/21, 14/21, and 16/21. Hope this helps, let me know if correct!!

2/3, 5/7, 16/21

Step-by-step explanation:

turn them into decimals

Number 6: In a football game, the Bobcats scored all touchdowns, which are worth 7 points each. The Crocodiles scored all field goals, which are worth 3 points each. Neither team went scoreless. The final score of the game was the lowest tie possible given these conditions. How many points did each team score?



number 6 and number 7 are not together


Number 7: Multiplying a number by its reciprocal always results in a product of 1. What number must be multiplied by 3 23 to create a product of 1?

Answers

Answer: 0.1304

Step-by-step explanation:

Answer: 21points
Step-by-step explanation: 3 times 7 equals 21
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