Mathematics High School

solve the following
a brick measures
l= 15 cm
b= 8 cm
h= 5 cm
how many bricks will be used to make a wall of length=15 m, breath=10 m and height=8m

Answers

Answer 1

Answer:

2000000 bricks

Step-by-step explanation:

The computation of the number of bricks to be used is shown below:

The Volume of brick is

= (15 × 8 × 5)cm^3

= 600 cm^3

And, the Volume of wall is

= (1500 × 1000 × 800)cm^3

= 1200000000 cm^3

Now Bricks needed is

= 1200000000 cm^3 ÷ 600cm^3

= 2000000 bricks

Related Questions

If a = 12 in and b = 25 in, what is the area of the pencil? A. 372 in2 B. 169 in2 C. 322 in2 D. 444 in2

Answers

Answer:

1169 in^2 Approx

Step-by-step explanation:

Given data

We know that the shape of the pencil is cylindrical

Hence the dimension is

Diameter= 12in

Radius= 12/2= 6in

Height= 25in

The surface area of a cylinder is given as

T.S.A.=2πrh+2πr^2

Substitute

T.S.A.=2*3.142*6*25+2*3.142*6^2

T.S.A.=942.6+226.224

T.S.A=1168.824

Hence the area is 1169 in^2 Approx

A savings account increases from ​$300 to ​$309. What is the percent increase of the savings​ account?

Answers

Answer:

9 percent

Step-by-step explanation:

Answer:

3%

Step-by-step explanation:

1st Method: Increase Formula = (Last value-first value)/(first value)

Increase = (309-300)/300 = 9/300 = 3/100

= 0.03 or 3%

2nd Method: 309/300 = 103/100 = 1.03 (increase over 1 is 0.03 = 3%

Which expression is equivalent to 46 - 2x)?

A) 24-8x

B) 24-6x

C) 10-8x

D) 10-6x

Answers

Answer:

24-8x

Step-by-step explanation:

Answer:jghgghfgfhgfhghfj

Step-by-step explanation:

Billy is 80 feet from the base of a building. The angle of elevation to the top of the building is 35 degrees. If the distance from Billy's eyes to the ground is 5 feet, how tall is the building?

Answers

Answer:

61 ft

Step-by-step explanation:

The detailed step by step solution has been attached in pen and paper format. Feel free to ask any doubt.

I dont know how to do this pls help me ​

Answers

x = 36 Answer

By Pythagoras Theorem

given the expression -x^2-6x+7,when expressed in form a(x+h)^2+k, the value of k is?​

Answers

Answer: k = 16

Step-by-step explanation:

The equation is written in the form:

y = ax^2 + bx + c

y = -x^2 - 6x + 7

y = a(x - h)^2 + k where (h, k) is the vertex

a = -1 (from the original equation)

h = -b/2a (this is the equation for the line of symmetry or the x-value of the vertex)

h = -(-6)/2(-1) = 6/-2 = -3

when x = -3, y = ?

y = -(-3)^2 - 6(-3) + 7

y = -(9) + 18 + 7

y = -9 + 18 + 7

y = 16

(-3, 16) is the vertex

Since k is the y-value of the vertex, k = 16

I'll just take it a step further and write the whole equation:

Substitute all the values we found

-1(x +3)^2 + 16

-(x + 3)^2 + 16

a ratio of 10 to 2 is the same as A 8/2 B 8/10 C 12/8 D 5/1​

Answers

Answer:

D. 5/1

Step-by-step explanation:

10/2 = 5

5/1 = 5

I hope this helps :)

i need help please i really don’t get it

Answers

Answer: no se ve bien

Step-by-step explanation:

mucha ilumnacion

PLEASE HELP QUICKLY!! The sum of two numbers is 12. Their product is 2. What are the two numbers?

Answers

Answer:

the answer is six and two

I need help pls thank you
Blah blah

Answers

Answer:

TSP RSU

Step-by-step explanation:

Hope this helps!

Please give me the correct answer.Only answer if you're very good at math.​

Answers

Answer:

1st graph

Step-by-step explanation:

this is the only graph that begins at 24, has a negative slope, is linear, and ends at (8,0) which, after 8 hours losing 3 pots per hour, makes sense

It is the top left graph

I can tell because at 0 hours, they started out with 24 plants, which means there should be a point at (0,24). I also know that free every hour, they remove 3 plants, so the line should be going down (as the number of pots keeps on getting lower).


​Which city had the highest temperature?


​

​Which city had the lowest temperature?


​

​Which city had a temperature greater than Oakland?


​

​What was the difference in temperature between Detroit and Oakland?

degrees Celsius.

Answers

1.Scottsdale
2.st Louis
3. Scottsdale
4. -41
1. Scottsdale
2. Detroit
3.Scottsdale
4.23

Jason can travel 24 3/4 miles in 1/2 hour. What is his average speed in miles per hour?

Answers

49.5 mph
just multiply the miles by 2 because it is only half an hour

Answer:

24 3/4 miles is the distance

1/2 hour - is time

V=S/t

24\frac{3}{4}

4

3

/ 0.5 = \frac{(24*4+3)2}{4}

4

(24∗4+3)2

=49.5 miles per hour

A BUSHEL OF APPLES WEIGHS ABOUT 42 POUNDS. THERE ARE 4 PECKS OF BUSHELS. IT TAKES 2 POUNDS OF APPLES TO MAKE ONE PIE. HOW MANY PIES CAN YOU MAKE WITH ONE PECK OF APPLES?

Answers

Answer:

84  pies

Step-by-step explanation:

if you multiply 42 pounds by4 pecks. You get 168 pounds. and then you divide that by 2 and you can make 84 pies

Mr. Locke was paid $190 for a job that required 40 hours of work. At this rate, how much would he get paid for a job that requires 60 hours of work?​

Answers

285 dollars for 60 hours of work

Area of shape please help

Answers

230cm^2

Seperate the triangle, 9x 20 the divide by 2, 90.
Then the rectangle is 7x20 so 140, and add them together to get 230

Answer:

i think its 230cm but i could be wrong let me know

Step-by-step explanation:

Jameson pays $39.90 for 3.8 pounds of almonds. What is the price per pound of almonds?

Answers

Step-by-step explanation: The price of3.8 pounds of almonds=$39.90 thus we can write Hence the price of almonds is $10.50 per pounds.

AWNSERS:$10.50

Answer:

Step-by-step explanation: 39.90 x 3.8 = 151.62

What is the simplified version of
6(m - 2m) - (4m - 5m) ?

Answers

Answer:

-5m

Step-by-step explanation:

6m-12m-4m+5m

-6m+1m

=-5m

Which equation represents the like that is parallel to y= 3 and passes through (-2,-8)
A. X=-2
B. X=-3
C. Y=-8
D. Y=3x-2

Answers

The answer is y=-8

Hope this helps

The height of a right cone is 3 inches shorter than the radius. What is the height of the cone if the volume is 17 cubic inches?
a. 3.454 inches
b. 4.01 inches
c. 7.01 inches
d. 1.01 inches

Answers

Answer:

1.03 inches

Step-by-step explanation:

Volume of a come = 1/3πr²h

If the height of a right cone is 3 inches shorter than the radius, then;

h = r - 3

Substitute

V = 1/3πr²(r-3)

Given that V = 17in^3

17 = 1/3πr²(r-3)

17*3 = 3.14r²(r-3)

51/3.14 = r²(r-3)

16.242 = r²(r-3)

r² = 16.242

r = √16.242

r = 4.03

Since h = r - 3

h = 4.03 - 3

h = 1.03 inches

hence the height is 1.03 inches

Someone help with the second question

Pleaseeeee

Answers

Answer:

Answer shown above.

Have a good day

The length of one side of APTV is given. Use the relationship between the sides of a 30°-60°-90° triangle to find the lengths of the other two sides.​

Answers

Answer:

your answers will be 3 and 6

Step-by-step explanation:

have a nice day !!^_^

If ∠2 and ∠3 are complementary angles and m∠2 = 24°, find m∠3.

Answers

Answer:

sorry dont know

Step-by-step explanation:

Answer:

yessadadasdadada

Step-by-step explanation:

It’s due tonight help please

Answers

Answer:

:)

Step-by-step explanation:

A) 4,4

B) 2,2

C) 4,3

Hope this helps

Find the percent change. 150 pounds to 135 pounds.

Answers

Answer:

-10%

Step-by-step explanation:

precent change = 135 - 150

(divide both sides by 150)

precent change = -0.1

(multiply both sides by 100 so change to precent)

precent change = -10%

Answer:

10%

Step-by-step explanation:

Please help!!!!!!!!!!! Will give brainlist

Answers

Answer:

0.2

Step-by-step explanation:

When you have a decimal problem you add a 0 before the number. But if its a fraction ike 4 5/8 the decimal would be 4.58.

3. Is this data linear or nonlinear? Explain how you know.*

Answers

Answer:

Non-linear

Step-by-step explanation:

Not consistently increasing

Dale runs 10 miles in 75 minutes. At the same rate, how many miles would he run in 69 minutes?

Answers

Answer: 9.2 miles

Step-by-step explanation:

Answer: 9.2 miles

Step-by-step explanation:  hope this helps you!

ayudaaaa por favor es urgente​

Answers

Answer:

use trig

Step-by-step explanation:

sin(15) = 100/x

x = 100/sin(15)

use calculator

Catherine put $5500 into a savings account that earns 4% compound
interest monthly. After six months, how much money will she have total?

Answers

6,820$ because you just find 4% of 5,500, then multiple that amount by the amount of months , and just add your initial amount plus that amount and there is your answer
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