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algol [13]
3 years ago
14

Christo's Building

Mathematics
1 answer:
nikdorinn [45]3 years ago
6 0

Answer:

A) 4140 blocks

B) 6480 square inches

Step-by-step explanation:

Given that the model building will measure 11.5 inches high and 7.5 inches wide and 6 inches long

The volume = 11.5 × 7.5 × 6 = 517.5 cubic inches

A. The blocks of 1/2 inch on each side that would be needed to make the model building will be

1/2 × 1/2 × 1/2 = 1/8 = 0.125 cubic inches

517.5/0.125 = 4140 blocks

B) Given that the number of square feet needed to cover the real building is 144 times the number of square inches needed to cover the model. 

Since the model is of 7.5 inches wide and 6 inches long.

The model Area = 7.5 × 6 = 45 square inches

The fabric needed to cover the real building will be

45 × 144 = 6480 square inches

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ser-zykov [4K]

Answer:

                                                             gi ve me brainliest and i give answer

Step-by-step explanation:

3 0
3 years ago
Find the distance between pair of points (0, - 5) and (7, 2) . necessary , express the answer in radical form and then round to
kifflom [539]

Answer:

d=9.899495 or √98

Step-by-step explanation:

√(7-0)^2 + (2-(-5))^2

√(7)^2+(7)^2

√98

6 0
3 years ago
PLEASE HELP
Eva8 [605]

Answer: 51 Children and 36 Adults.

Step-by-step explanation: Let's call x the number of children admitted and call z the number of adults admitted.

We know that x+z= 87

We also know that 3.25x+3.5z= 291.75.

We want to find the value of x and z. Then we solve the system of equations:

Multiply the first equation by -3.5 and add it to the second equation:

-3.5x-3.5z= -304.5

3.25x+3.5z= 291.75

-----------------------------------------------------------------------------------------------------------------

-0.25x=-12.75

x= -42.75 ÷ -0.25

x=51

----------------------------------------------------------------------------------------------------------------

Now we substitute the value of x in the first equation and solve for the variable z

51+z=87

z=87-51

z= 36

Omg took me like 10 minutes to calculate would appreciate brainliest. Have a wonderful day.

6 0
3 years ago
Find the value of Y.
Deffense [45]

Answer:

  5√3

Step-by-step explanation:

The ratio of side lengths in a 30-60-90 triangle is ...

  1 : √3 : 2

__

Multiplying by 5, we have ...

  1 : √3 : 2 = x : y : 10 = 5 : 5√3 : 10

The value of y is 5√3.

_____

<em>Additional comment</em>

y is the side adjacent to the 30° angle, so can be found from ...

  Cos = Adjacent/Hypotenuse

  Adjacent = Cos × Hypotenuse . . . . . multiply by hypotenuse

  y = cos(30°)×10 = (√3)/2 × 10 . . . . . . substitute corresponding values

  y = 5√3

__

The value of x is 5.

7 0
2 years ago
Read 2 more answers
Is true or false 18= 18.00​
larisa86 [58]

Answer:

it is true.  any whole number has a 0 following the decimal

4 0
3 years ago
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