Two tins are geometrically similar, if the ratio of there volume is 27:64, find the ratio of the curved surface areas​

Answers

Answer 1

Answer:

9:16.

Step-by-step explanation

The scale factor is  ∛27:∛64

= 3:4.

So the ratio of the curved areas = 3^2:4^2

= 9:16.


Related Questions

describe fully the single transformation that maps triangle A onto triangle B.

Answers

The transformation is a reflection on the line y = 0 (or the x axis).

Hope this helps!


2. The number of male teachers is 2/3 of the number of female teachers in a school. If there are 75 teachers altogether, how many more female teachers than male teachers are there?

Answers

Answer:

15

Step-by-step explanation:

Because the male teacher number is 2/3 of the female teachers, we can count the female teacher number as 3/3. and since we have a ratio of 2/3 to 3/3 we can take out the 3 and think of it as 2 to 3. Since it is 2 to 3, we have 5 in total and you can divide 75 by 5 which will get you 15 (how many teachers per unit in the ratio) and if you multiply 15 by 2, you will get the male teacher number which is 30, and when you multiply 15 by 3, you will get the female teacher number which is 45, and when you subtract them, you will get 15 more female teachers.

Hope it helped!

There are 15 more female teachers than the male teachers.

What is equation?

An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.

Given that, The number of male teachers is 2/3 of the number of female teachers in a school and there are 75 teachers altogether,

Let there be 6x female and 4x male teachers in the school,

Establishing the equation,

6x + 4x = 75

10x = 75

x = 7.5

Number of more females = 6x-4x = 2x = 2(7.5) = 15

Hence, there are 15 more female teachers than the male teachers.

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Anrnav was 1.5m tall in the last couple years his height increased by 20%


How tall is anrav today?

Answers

Answer:

1.8 meters

Step-by-step explanation:

It was easy for me

The mass of a tin of paint is 890 grams, correct to the nearest 10 grams. Workout the upper bound of the total mass of 10 tins of paint.

Answers

Answer:

8900

Step-by-step explanation: :þ

Can somebody help me with 20. Thank you!!!

Answers

Answer:

What do you mean, I'll help.

Step-by-step explanation:

someone please help me quickly PLEASEEE!!! ​

Answers

Each shirt costs 17.99
He buys 2 shirts so in sum they cost 35.98

To work out the price of 3 socks we do
45.97 - 35.98 = 9.99
This gives us price of three socks
So now we divide by 3
9.99/3 = 3.33
Answer : 3.33
If each shirt cost 17.99 both shirts would be 35.98 subtract that from the total 45.97 and you get 9.99 and if you dived that by 3 you get 3.33

Help anyone please and thank you

Answers

the answer would 1/4 of a gallon

simply because 4 of the containers equals one gallon

2. A certain 80 cm spring will stretch (in cm) three-sixteenths the weight (in kg) attached to
it. How long will the spring be if a 15-kg weight is attached to it?

Answers

The answer is it will stretch 20 cm

Write the equation of each line in slope intercept form.

Answers

Step-by-step explanation:

Formulas and Formats we'll be using:

Slope Formula: [tex]m=\frac{y2}{x2} -\frac{y1}{x1}[/tex]

Slope-Intercept form: [tex]y=mx+b[/tex]

m = slope

b = y-intercept

Substitute (-6, 10) and (-3, -2) into the slope formula:

[tex]m=\frac{-2}{-3} -\frac{10}{-6}[/tex]

Simplify:

[tex]m=\frac{-12 \div 3}{3 \div 3}=\frac{-4}{1}[/tex]

[tex]m=-4[/tex]

*Per every -4 y, x increases by 1.

Points Included:

(-6, 10)

(-5, 6)

(-4, 2)

(-3, -2)

(-2, -6)

(-1, -10)

(0, -14)

Y-intercept:

Y-intercept represents x when it's equal to 0.

Using our points, we can determine that the y-intercept is at the point:

(0, -14)

-14 is the y-intercept.

Create a Slope-intercept form equation:

Formula: [tex]y = mx + b[/tex]

Substitute the slope, and y-intercept into the equation:

[tex]y=-4x-14[/tex]

Your equation is: [tex]y=-4x-14[/tex]

Which number is greater explain your reasoning .375 or 3/8? help!

Answers

Hey there!

“Which one of is greater 0.375 or 3/8?”

3/8

= 3 ÷ 8

= 0.375

.375 = 0.375

0.375 = 0.375

So, therefore NEITHER is greater because both numbers are EQUIVALENT to (EQUAL to) each other

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

☆Answer :

⅜ = 0,375

3 ÷ 8 = 0,375

0,375 = 0,375

True.

Josh is painting all the walls in his room that is 3m x 4m and 2.75m high, How much paint in square feet is needed?

Answers

Answer:

33

Step-by-step explanation:

3*4*2.75=33

The sale of cars in a particular month is decreased by 20% is $3060. What was the sale of cars before reduction.​

Answers

Answer:

$3672

Step-by-step explanation:

3060 x 20% = 612

612 + 3060 = 3672

simplify:...... (3x⁴)³

Answers

Answer:

27[tex]x^{12}[/tex]

Step-by-step explanation:

Long way:  3x^4)^3 means that 3x^4 will be multiply by itself three times

[tex](3x^{4})^3 = (3x^{4})(3x^{4} )(3x^{4} ) =27x^{12}[/tex]  

Short way   [tex]3^{3}[/tex] ([tex]x^{4(3)}[/tex] ) = 27[tex]x^{12}[/tex]

Answer is right here⬇️

The pie chart represents the proportions of how Henry spent the £720 he took on holiday.

What fraction of his money did he spend on drink?
Give your answer in its simplest form.

Answers

Answer:

£114

Step-by-step explanation:

Rate brainliest please

[tex] \frac{57}{360} \times 720 = 114[/tex]

What does this multiplication equation mean?

6 × 7 = 42

Select each correct answer.


Seven more than 6 is equal to 42.

Seven times as much as 6 is equal to 42.

Six times as much as 7 is equal to 42.

Six more than 7 is equal to 42.

Answers

Answer:

Step-by-step explanation:

Six times as much as 7 is equal to 42 would be the equation

given: AE and BD bisect each other.
prove: triangle ACB - triangle ECD

Answers

The Triangles are congruent by SAS Criteria.

The step by step explanation is there in the image I attached.

Hope it helps you....

Please mark as brainlliest!!!

Work out the size of angle x

Answers

X = 13°

This is because the 85° opposite angle is part of the triangle, and the 98° is apart of a straight line (180°-98°=82°) in which the 82° is also apart of the triangle (because of the c pattern) and lastly as it is a triangle you just do 180°-(85°+82°) which equals 13°

Answer:

Opposite angles are equal

Corresponding angles are equal

Angles on straight lines adds to 180

Angles in triangle adds to 180

180-98=82

82+85=167

180-167=13

Answer is 13

5/9 rounded to the nearest thousand​

Answers

answer is .5 repeating, round at thousands place

0.556
The answer is: 0.556

Explanation:

When you divide 5 by 9, you get the answer 0.5555….

Simply count to the thousandth place after the decimal and round which gives the answer: 0.556

A person has a bag containing quarters and dimes. There are a total of 72 coins in the bag, and the total value of the coins is $13.20. Determine how many quarters and dimes are in the bag.

Answers

Answer:

40 quarters and 32 dimes

Step-by-step explanation:

Given:

Quarter = 25 ¢, number of quarters = qDime = 10 ¢, number of dimes = dTotal amount = $13.20 = 1320 ¢

Required equations:

q + d = 7225q + 10d = 1320

Solve by elimination, multiply the first equation by 10 and subtract from the second equation:

25q + 10d - 10q - 10d = 1320 - 10*7215q = 600q = 600/15q = 40

Find p:

40 + p = 72p = 72 - 40p = 32

Let's take the given as,

→ q = quarters (25)

→ d = dimes (10)

→ 1320 will be the amount

→ q + d = 72

→ 25q + 10d = 1320

Now we can solve for q,

→ (25q - 10q) + (10d - 10d) = 1320 - (10 × 72)

→ 15q = 1320 - 720

→ 15q = 600

→ q = 600/15

→ [ q = 40 ]

From this equation,

→ q + d = 72

We can solve for the d,

→ 40 + d = 72

→ d = 72 - 40

→ [ d = 32 ]

There are 40 quarters & 32 dimes.

3 Write a numerical expression to model the words. Subtract 1 from the product of 4 and 5.​

Answers

Answer:

Hello!

After reading the question you have provided I have come up with the correct numerical expression:

4x5-1

Step-by-step explanation:

To come up with this solution you need to keep in mind some of the terminoloy being used.

The word "subtract" comes from the action of subtraction

The word "product" comes from the action of multiplication

Thus, using those terminologies correctly, you can then deduce that when the question says "the product of 4 and 5" means "multiplying 4 and 5 together".

So you get the first part being 4x5

Then, you add in the last part of "subract 1" from the "product of 4 and 5":

4x5-1

Remember to keep in mind the rule of "PEMDAS"

You always need to keep the multiplication portion of the equation in front of any subtraction, or addition in any given equation.

Here to form the numerical expression we will first do the product of 4 and 5 and then subtract 1 from their resultant and that is ou required answer.

What is numerical expression ?

A numerical expression is written in terms of numbers and their operations numerical expression can of many types for example arithmatic expression , alzebraic expression etc.

some examples of arithmatic operations are -

240+130 = 370

240÷12 = 20

Some examples of alzebraic expressions are

3x + 4y = 7

x² + 3x - 7 = 0

In the given question subtract 1 from the product of 4 and 5 can be expressed as (4x5) - 1 = 20 - 1 = 19

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Lori decied to save up for a trip.She put $1120 of her saving into a bank account. If she earns 2% interest how much will have alotgether after



help pls

Answers

Answer:

$1,344 is her total.

Step-by-step explanation:

0.2 x 1120 = 240 + 1120

Writing quadratic functions

Answers

Answer:

So, y = x^2 is a quadratic equation, as is y = 3x^2 + x + 1. All of these are polynomial functions of degree 2. Often you will be given the quadratic ...

Which is the equation of a line that is parallel to the line y= -1/3x + 1
A.y= -1/3x + 1
B.y= 3x - 2
C.y= -1/3x + 2
D.y= 1/3x + 1

Answers

C. y= -1/3x + 2

This line has the same slope (-1/3), so it’s parallel to the line given. Option A is incorrect because it’s just the same line.

ONLY BOTS WITH LINKS KEEP ANSWERING MY QUESTION PLEASE SOMEONE HELP ME WITH THIS

Answers

Answer:

the figure A was rotated 145° over the origin(0,0), and flipped over the x-axis, and for last it was moved 4 to the right and 1 down (x+4,y-1)

The number of board games cannot be negative. Write this constraint.

The number of role-playing games cannot be negative. Write this constraint

Answers

Step-by-step explanation:

回答 你今天在做什么 我父亲是一个地球仪 并将其邮寄给今日印度的中央政府组 为年轻人提供在线学习 答案是肯定的 我不确定你是否

∆ABC has the vertices A(0,0) B(3,3) C(-3,3). Classify the triangle by its sides. Then determine whether it is a right triangle.

Answers

It’s gonna be b your welcome

Write the following number in expanded form.

176,945,596​

Answers

Answer:

= 176,945,596

Step-by-step explanation:

100,000,000 + 70,000,000 + 6,000,000 + 900,000 + 40,000 + 5,000 + 500 + 90 + 6 = 176,945,596

= 176,945,596

(Hope this helps can I pls have brainlist (crown)☺️)

help please i only have 10 mins left

a. parallel
b. perpendicular
c. neither

Answers

Answer:

they are perpendicular

Step-by-step explanation:

It’s B


Good luckkkkkkkkkkkkkk

Please help me please

Answers

Answer:

Step-by-step explanation:

Answer:

m +2 = 4

m = 2

x = 1

y +1 = 2

y = 1

z = -1

A 66-inch candle burns down in 12 hours. After how many hours will it have burned 5 3/4 ​ inches?

Answers

Answer:

9.5 hours

Step-by-step explanation:

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Does anyone know this? 2. If triangle ABC is congruent to triangle DEF by SAS, AB=DE,