The sheet of metal has dimensions 56 cm by 33 cm. It sis melted down
and recast into discs of the same thickness and radius 7 cm. How many
disces will be cast ?

Answers

Answer 1

Answer:

12

Step-by-step explanation:

To determine the number of discs, divide the area of the metal sheet by the area of the discs

The metal sheets are in the shape of a rectangle, thus the area of a rectangle would be used to determine the area of the sheet

Area of a rectangle = length x breadth

56 x 33 = 1848 cm^2

The disc is in the shape of a circle.

area of a circle = πr²

π = 3.14

r = radius

3.14 x 7² = 153.86 cm²

Number of discs = 1848 /153.86 = 12


Related Questions

When a coin is flipped 20 times and lands heads up 11 times, what is the
experimental probability? Write your answer as a decimal.

Answers

Answer:

0.55

Step-by-step explanation:

11 (the time it lands on heads) /20 (the number of times it was flipped) = 0.55

If 40% of a number is 14, find 20% of that number.

Answers

Answer:

7

Step-by-step explanation:

Because half of 40% is 20%

So 14%2 = 7

The distance between two cities on a map measure 3.71 inches. The scale on the map shows that 2 inches is equal to 50 miles. How many miles apart are the two cities

Answers

Answer:

92.75 miles

Step-by-step explanation:

3.71 / 2 = 1.855

1.855 * 50 miles = 92.75 miles

Given that CAT = DOG select all statements that are true,

Answers

Answer:

The answer to this problem Is A I think

Step-by-step explanation:

It’s A or B but I mostly think A just good luck

44444444444444 help me ples

Answers

Answer:

a

Step-by-step explanation:

find the area of the rectangle PLUM khan academy

Answers

Answer:

Length x Breadth

Step-by-step explanation:

During basketball practice, you make 8 free throws out of 20 shots taken. Using
experimental probability, how many free throws would you score out of 50
shots taken?

Answers

Answer:

if you make 4 free throws for every 10 shots taken you would make 20 out of 50 free throws

Step-by-step explanation:

the temperature is -2c if the temputure rises to 15c , what is the new temputure

Answers

Answer:

13c

Step-by-step explanation:

-2 + 12 = 13

carol is making baby blankets for her daughters twins. If one blanket needs 43/4 yd of fabric, how much fabric does carol need for two blankets?

Answers

Answer:

21 1/2 yd

Step-by-step explanation:

43/4 + 43/4 = 21 1/2 yd

In a normal distribution, 95% of the data falls within 1 standard deviation of
the mean.

True or False?

Answers

Answer:

False

Step-by-step explanation:

A P E X

Find the length of the third side if necessary write in simplest radical form

Answers

Answer:

hi

Step-by-step explanation:

Determine the surface area of a cereal box with these dimensions width: 3 inches length: 8 inches height: 12 inches

Answers

It’s 11 inches amd 12 ft but hola Sonora

Jamal needs the order the four cards shown in increasing order .which would be the correct order of cards

Answers

Answer:

It's C, not D

Step-by-step explanation:

The solution is, Jamal needs the order the four cards shown in increasing order , D > A > B > C would be the correct order of cards.

option A.

What is number?

A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words.

here, we have,

given that,

Jamal needs the order the four cards shown in increasing order

we have,

A. -2/9 = -0.22

B. -.25 = - 0.25

C. -29% = -0.29

D. -1/5 = -0.2

we know that,

-0.2> -0.22> -0.25 > -0.29

so, the correct order of cards is:

D > A > B > C

Hence, The solution is, Jamal needs the order the four cards shown in increasing order , D > A > B > C would be the correct order of cards.

option A.

To learn more on number click:

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#SPJ2

PLEASE ANSWER THIS ASAP I WILL GIVE YOU 5 STARS AND BRAINLIEST

Answers

Answer:

1. d

2. c

3. b

4. f

5. a

6. e

Step-by-step explanation:

Good Luck

What is the answer to 3x+2(x-1)

Answers

I think it’s 5x-2, sorry if it’s wrong

Please complete the table below.

Answers

Answer:

1.is 12

2. is 36

3. is 18

4. is 4.5

Step-by-step explanation:

sorry if im wrong

$75 = 3 sweatshirts
$25 = 1 sweatshirt
$50 = 2 sweatshirts
$200 = 8 sweatshirts

Hope this helps :)

1. What type of angle am I?m<1=91 degrees, m<2=89 degrees

Complementary

supplementary

Other:

Answers

Answer:

Step-by-step explanation:

If they are added, they are supplementary. If anything else is done to them, there is no answer.

89 + 91 = 180 Supplementary angles add to 180.

[tex]\left \{ {{x=3} \atop {y+1=0}} \right.[/tex] solve graphically this linear system of equations

Answers

Answer:

The solution is the point (3, -1)

Step-by-step explanation:

We have the system of equations:

x = 3

y + 1 = 0

To solve this graphically, we need to graph these two lines and see in which point the lines intersect.

To graph the line x = 3, we need to draw a vertical line that passes through x = 3.

To graph y + 1 = 0

First we should isolate y.

y = -1

This is graphed as a horizontal line that passes through y = -1

The graph of these two lines can be seen in the image below.

Where the green line is x = 3, and the blue line is y = -1

Now, looking at the graph we can see that the lines do intersect in the point (3, -1)

Then the solution of the system is the point (3, -1)

Michael is opening a savings account for college. The expression 2,300(1.002)12t represents the dollar amount in the account after t years.

Part A
What does the value 2,300 represent in the expression?

Answers

Answer:

2300 represents the amount Michael initally depoisitedin his savings account.

Step-by-step explanation:

An expression is defined as a set of numbers, variables, and mathematical operations. The value 2,300 represented in the expression is representing the initial amount that was in the account.

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Given that the expression [tex]2,300(1.002)^{12t}[/tex] represents the dollar amount in the account after t years. Therefore, the value 2,300 represented in the expression is representing the initial amount that was in the account.

Learn more about Expression:

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Find the radian measure of an angle of -340

Answers

Answer:

-1.889 rad

Step-by-step explanation:

180 degrees = [tex]\pi[/tex]

-340 x [tex]\frac{\pi }{180}[/tex]

-340[tex]\pi[/tex]/180

-34[tex]\pi[/tex]/18

-1.889 rad

Fred kicks a ball with a force of 20n to George, who is 5m away. How much work was done to the ball

Answers

Answer:

100 Nm

Step-by-step explanation:

Work is said to be done when a force moves a body through a distance. This may be expressed as

work done = Force * distance

where

work done is measured in joules or Newton-meter

Force is measured in newtons and distance in meters

Substituting the given values,

Workdone = 20 * 5

= 100 Nm

= 100J

Find the value of x.

Answers

Answer: 55

Step-by-step explanation:90-31= 59

59-4=55

Sergio ate 3.5 cookies. Each cookie contained 5.7 grams of sugar. How many grams of sugar did Sergio eat?

Answers

I’ll get it correct here :)

He ate 19.95 grams of sugar.

3.5 x 5.7 = 19.95

find cos B in the triangle

Answers

Answer: A: 5/13

Explanation: Cos = Adjacent/ Hypotenuse

ANOTHERRR >: D
THANKS FOR ALL THE PEOPLE HELPINGG < 3

Answers

Answer: it C trust me it right & can you please mark me Brainliest

Step-by-step explanation: Hope this help :D

☁️ Answer ☁️

C, x < 4.

2/x −3< − 1

Multiply both sides of the equation by 2.

x−6< −2 (negative 2)

Add 6 to both sides.

x < (negative 2) −2 + 6

Add −2 and 6 to get 4.

x < 4

Hope it helps.

Have a nice day noona/hyung.

Martin recorded the low temperatures at his house for one week. The temperatures are shown below.
-7, -3, 4, 1, 2, 8, 7
Approximately what was the average low temperature for the week?
Α. 7
B. "1
C. 1
D "8

Answers

It would be 1. You add all the temperatures. Get the sum and divide it by the amount of temperatures.

Juan earns a flat fee of $150 plus $20 for every hour he works decorating 5 points
a house. Which graph correctly displays Juan's earnings?

Answers

Answer: The 3rd one is the correct answer

Step-by-step explanation:

pls help i'll give u a brainlyy

Answers

Answer: -633

Explanation:

formula is a0= a1 + (n-1)d

a0 is what ur tryig to find

a1 = -14

n= 60

d = -11

Answer:

-674

Step-by-step explanation:

As,

There is always a gap of -11 in all the proceedings

Hence,

- 14 -11 = -25

-14 -(11 ×2) = -36

So,

60th term

-14 -(11 × 60) = -674 (Ans)

The measures of two complementary angles are in the ratio of 2 : 7. Find the measurements of the two angles.

Answers

Answer: 20°  &  70°

Step-by-step explanation:

We know complementary angles will add up to 90° and we also know we can divide the total by 9 parts because our ratio is 2 parts to every 7 parts.

To find each individual part size...

9x=90

x=10

so use our ratio...

2x10=20  for first angle

7x10=70 for second angle

I need to know how much metal is needed to make the can

Answers

Answer:

we don't have any wasted metal and everything goes perfectly. In the real world, waste is inevitable.

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