Mathematics Middle School

15 is what percentage of 30?
Explain how to calculate this mentally.

Answers

Answer 1

Answer:

Step-by-step explanation:

50

Answer 2
50 step by steps .............!...

Related Questions

The elevation of Location 1 is 20 feet above sea level and the elevation of Location 2 is 50 feet below sea level.
Which comparison of these locations is both true and correctly justified?

A: Because 20 < 50, Location 1 is higher.
B: Because 20 < 50, Location 2 is higher.
C: Because –50 < 20, Location 1 is higher.
D: Because –50 < 20, Location 2 is higher.

Answers

Answer:

C

Step-by-step explanation:

we can mark sea level as 0 on a numberline so location one is 20 units above 0 and location 2 is 50 units below 0 20 is a higher value so the answer is c.

Answer:

answer is c)Because –50 < 20, Location 1 is higher.

Step-by-step explanation:

below sea level = -50

above sea level = + 20

looking at the number line 20 is greater

pls mark as brainliest!!

Sketch the graphs using 3 points that belong to it. a y = 3x - 2

Answers

Answer:

I hope this helps!

20 POINTS PLEASE HELP ASAP!!!
The graph shows the depth, y, in meters, of a shark from the surface of an ocean for a certain amount of time, x, in minutes:

Part A: Describe how you can use similar triangles to explain why the slope of the graph between points A and B is the same as the slope of the graph between points A and C.

Part B: What are the initial value and slope of the graph and what do they represent?

Answers

Step-by-step explanation:The slope of AB and BC are the same.

The initial value is 60 m and the slope is 40 m/min.

Step-by-step explanation:

The graph shows the depth, y, in meters, of a shark from the surface of an ocean for a certain amount of time, x, in minutes.

See the graph attached.

Part A : If we consider two right triangles one Δ ABD and Δ BCE, where D(2,100) and E(1,60) points.

Now, those two triangles are similar and hence the slope of line segment AB will be .

Again, the slope of the line segment BC will be

Hence,  and the slope of AB and BC are the same. (Answer)

Part B : From the graph, it is clear that the initial value of the graph is 60 m and it represents that initial position of the shark i.e. at t = 0 min, the shark was at a depth of 60 m from the water surface.

The slope of the graph is 40 means the rate of change of distance from the Ocean surface of the shark with respect to time in minutes will be 40 m per min. (Answer)

Can someone please help me find the sum of each interior angle measure of the polygon, and can you please explain. I need help on both of these questions.

Answers

Answer:

i dont know, just need some points

Step-by-step explanation:

CAn I GeT An ANsWer PweASe

Answers

Answer:

b

Step-by-step explanation:

can i plz have brainlest

How to do 0.3 divided by 0.1

Answers

Answer:

The answer will be 3

Step-by-step explanation:

if you multiply 0.1 thrice you will get 0.3

Hope this helps!

You can not divide anything by 1 so you will always get the answer you divide by do the answer is 3

Miss Owens has a coupon for 40% off a pair of shoes she pays $111.79 for a pair of shoes and a dress after using the coupon. The dress costs $64.99. Which equation can be solved for x, the retail price of the shoes?​

Answers

Answer:

The answer is A.

Step-by-step explanation:

Process of elimination... Its not C or D because the % distributes onto the dress cost and it only contributes to 111.79. Also, 40% of 1 is 0.6 so its not B, which leaves A...

Segment ME has a length of 13 inches and is rotated 270∘ counterclockwise about the origin to segment M′E′.
What is the length of segment M′E′?

Answers

Answer

90

Step-by-step explanation:

Divide 270 degrees by 3

I know that bc I had the same question on khan academy

Answer:

90

Step-by-step explanation:

PLS HELP ILL GIVE BRAINLIEST!

Answers

Answer:

i believe it would be A tell me if im wrong

Step-by-step explanation:

I believe it is A
Explanation

write a real world problem in which you need to find the volume of a right rectangular prism. solve your problem

Answers

Answer:

Bh=v

Step-by-step explanation:

You and your friend are competing to see who can buy the biggest game cards in the biggest box. You buy a rectangular box of game cards. Your friend also buys a rectangular box of game cards with a volume of 76in³. The bottom of your box has a length of 13in and a width of 4in. The height of your box is 23in. Find the volume of your box to see if it is bigger than your friends.

Pls hurry and helppp NO LINKS

Answers

The answer is B !!!!!!
B because 2(-2)+8=4.

GIVING BRAINLIEST NO LINKS
Parth created a Box-and-Whisker Plot to show the average weight of the fish he caught over the weekend. What information does the maximum value give you?

A.Three-fourths of the fish he caught were larger than 22 pounds.
B.The middle weight of the fish he caught was 40 pounds.
C.Three fourths of the fish he caught were less than 50.5 pounds.
D.The largest fish he caught was 63 pounds.

Answers

The answer is gonna be b

plz help give brainleist

Answers

do it with proportion and divided by 1000

Step-by-step explanation:

Is this symmetrical or asymmetrical?
Dont guess!
I will mark brainliest if its correct!

Answers

Answer:

D.

Step-by-step explanation:

There's more numbers towards the later half of the dot plot.

srry for the other tabs but can you answer these two

Answers

I’m like 99% sure it’s A.

Chloe is driving on the freeway. She is 200 miles from Los Angeles. She drives at a constant speed of 55 miles per hour. Can Chloe get to Los Angeles in less than 3 1..2 hours?

Answers

Chloe is 200 miles from Los Angeles and she at a constant speed of 55 miles. You just do 200/55 and that’s how long Chloe drives in a hour.
No, it would take Chloe approximately 3.6 hours to reach LA.

200/55 = 3.64

Can someone help me figure this out if its blurry i'll try to write the whole thing out for you guys so plss answer this question

Answers

Answer:

Part 2)  5 hr

Part 3)   $80 and $160

Step-by-step explanation:

Part 2)  Equate the two pay equations:  20H = 10H + 50

             Subtract 10H from both sides:  10H = 50

              Then H = 5.  

               After 5 hours, each would have earned the same    amount.

Part 3)  In an 8-hour day, one guy would earn ($20/hr)(8 hr) = $160, and the other guy would earn ($10/hr)(8 hr) = $80.

Answer:

2. 5 hours

3. $80 and $160

Which shows the following fraction written as both a decimal and a percent?
2/500
A 0.004; 0.4%
B 0.04; 4%
C 0.002; 0.2%
D 0.025; 2.5%

Answers

your Answer is :

A or 0.004;0.4

Step-by-step explanation:

Answer:

Its A

Step-by-step explanation:


Which statements are true about the data shown in the
table? Check all that apply
Fido ran faster than Ruff.
Ruff ran faster than Fido.
The dogs ran at the same speed
Fido's speed was 3 feet per second,
Ruff's speed was 4 feet per second

(MULTI ANSWER QUESTION)

Answers

Ruff ran faster than Ridi. Fido’s speed was 3 feet per second. Ruff’s speed was 4 feet per second.

URGENT PLZ HELP
ANSWER ALL OR REPORT:

Mean, median, and mode of the numbers:
1.2, 5.8, 3.7, 9.7, 5.5, 0.3, 8.1

Mean, median, and mode of the numbers:
65, 46, 78, 3, 87, 12, 99, 38, 71, 38

Median of these numbers:
104.2, 94.4, 83.7, 80.9, 79.5, 77.9

Answers

44, 5.5, and 0 are the answers for the first one



44, 5.5, and 0 are the answers for the first one. I hope you find this helpful!!!

GIVING BRAINLIEST NO LINKS
Using the information in the Box-and-Whisker plot below, what is the 3rd Quartile?

A) 5
B) 12.5
C) 20
D) 27.5

Answers

Answer:

The answer is 27.5 I think-

Answer:

c)20

Step-by-step explanation:

The population of Friendly City is 150% of what it was 10 years ago. If its population was 25,000 what is its population now?

Answers

There are 2 ways to find. Check this out mate! I hope this helped.

Find the value of y (view picture below)

Answers

Answer:

5

Step-by-step explanation:

Apply the formula A^2 + B^2 = C^2

13^2 = 169

12^2 = 144

169 - 144 =  25

Square root of 25 is 5

Janey paints a block of wood with gold glitter for an art project. The block measures 8 inches by 10 inches by 20 inches.

After she's done, she decides to make two blocks by cutting through the block on the red line. She still wants each block to be covered with gold glitter.
What is the total area of the cut surfaces she still needs to paint?

1. What is the shape of each cut surface? What are its dimensions?
2. What is the area of each cut surface?
3. What is the total area Janey still needs to paint? Explain how you found your answer.

Answers

5 in by 8 inches by 10 inches

pls help its for a grade and i need to up my grade

Answers

Answer:

l

Step-by-step explanation:

solve this please asap

Answers

i need to answer to ask
Freezer A, You multiply all the sides

Question: Find the equivalent number.


(I will do brainlisit )

Answers

Answer:

81/9

9/1

9 is your answer ☺️☺️☺️

you're answer ist going to Be B.9

3^4

3×3×3×3

81

3^2

3×3

9

81/9 = 9

please help the t0 means to​

Answers

Yes , because 2-2 equals 0 then 0+5x leaving just 5x as the answer

The original price of a gold ring is $722. What is the sale price? The sale is 50% off

Answers

Answer:

361$

Step-by-step explanation:

Answer:

$361 is the sale price

Step-by-step explanation:

"Half off" on a $722 gold ring is found by expressing 50% as 0.50 and multiplying $722 by 0.50:  $361 is the sale price.

i dont know what to do for number 6, please someone help/explain!

Answers

Answer:

r= 16.65

Step-by-step explanation:

Formula of cone V= 1/3 pi r ^2 h

They give us the volume and height, we just need to find the radius.

85= 1/3 pi r^2 9

1/3 of 9 is 3.

85= 3 pi r^2

divide by 3 on both sides.

28.3= pi r^2

square both sides with calculator or logic and round to nearest tenth.

5.3= pi r

divide pi.

r= 5.3 pi = 16.65

To find volume, plug everything in the formula.

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