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Tju [1.3M]
3 years ago
15

One bag contains a mixture of 30% black sand and 70% red sand. A second bag

Mathematics
1 answer:
ipn [44]3 years ago
8 0

Answer:

Finish the question

Step-by-step explanation:

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Find the weight of the cast iron shape shown below at 0.26 pounds per cubic inch. (round to the nearest pound). The height of th
weqwewe [10]

Answer:

<u>640 pounds </u>

Step-by-step explanation:

The rest of the question is the attached figure

So, the total volume = V(cylinder ) + V(cone)

The volume of cylinder = π r² h

The volume of cone = π r² h/3

Both of the cylinder and the cone have the same diameter = 14 inches

So, the radius = 14/2 = 7 inches

The height of the cylinder is 13 inches and the height of the cone is 9 inches.

So, The volume of cylinder = π r² h = π * 7² * 13 = 2,001.2 in³

And The volume of cone = π r² h/3 = π * 7² * 9/3 = 461.8 in³

So, the total volume = 2,001.2 + 461.8 = 2,463 in³

So, the total weight = 0.26 pounds per cubic inch times the total volume

                                = 0.26 * 2463 = 640.38 pounds

                                = <u>640 pounds (to the nearest pound)</u>

6 0
3 years ago
Jeremy makes a drawing of a walkway shaped like three rectangles. The total area of the walkway is 24 square meters. What is the
nadya68 [22]

Answer:

Step-by-step explanation:

5 0
3 years ago
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Consider the following quadratic equation x^2 =4x -5. How many solutions does it have?
aleksandrvk [35]
The answer for your question is C.
5 0
3 years ago
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From the day it starts to grow from a seedling 2 inches high, a magic tree grows 5 inches a day. how tall will it be after 3 wee
Oduvanchick [21]
Your answer is 107 because there are 7 days in a week and there are three weeks so that is 105 inches then add the starting growth of two inches
6 0
3 years ago
In the system if linear equations below a and b are constants.The solution to the systems is 5,1
dalvyx [7]

Answer:

Step-by-step explanation:

Actually Welcome to the Concept of the linear equations..

Here given value of x= 5 and y =1 , so we get as,

5a + b = 38 and 5b - a = 8

so, now we multiply equation no. 2 by 5 all over.

==> 25b - 5a = 40....(1)

hence adding new equation and equation no. 1

26b = 78

b = 78/26

hence b = 3 , and a = 7

6 0
2 years ago
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