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fgiga [73]
2 years ago
12

Concrete is made by mixing cement, sand, and

Mathematics
2 answers:
Minchanka [31]2 years ago
6 0

Answer:

60 ft.

Step-by-step explanation

The fraction of cement on the concrete  

=  5 / (5+9+13)

= (5/27) * 324

= 5 * 12

= 60 ft.

prohojiy [21]2 years ago
5 0

Answer:

60

Step-by-step explanation:

Sum the parts of the ratio, 5 + 9 + 13 = 27 parts

Divide the amount of concrete by 27 to find the value of one part of the ratio.

324 ÷ 27 = 12 ← value of 1 part of the ratio , thus

5 parts = 5 × 12 = 60 ← cement

9 parts = 9 × 12 = 108 ← sand

13 parts = 13 × 12 = 156 ← gravel

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Answer:

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Step-by-step explanation:

x + 18 > 19

Subtract 18 from each side

x + 18-18 > 19-18

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1/10 of the M&amp;M s in a bag are red and 1/5 are blue . What fraction of all the M&amp;M s are red and blue?
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hich equation represents a line that passes through (5, 1) and has a slope of ? y – 5 = (x –1) y – = 5(x –1) y – 1 = (x –5) y –
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Answer:

The equation that would represent it would be y - 1 = (x - 5)

Step-by-step explanation:

In order to get this, we can start with the base form of point-slope form.

y - y1 = m(x - x1)

Now put the point in for (x1, y1)

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3 0
3 years ago
What is the volume of the figure below if a = 4.5 units, b = 5.8 units, and c = 3 units?
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Answer:

The answer to your question is the letter C

Step-by-step explanation:

Data

a = 4.5 u

b = 5.8 u

c = 3 u

Process

1.- Calculate the volume of the rectangular prisms

Formula

Volume = a x a x c

Substitution

Volume = 4.5 x 4.5 x 3

Result

Volume = 60.75 u³

But there are two rectangular prism

Total volume = 2 x 60.75

                      = 121.5 u³

2.- Calculate the volume of the triangles

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Volume = base x width x height

Substitution

Volume = 5.8 x 3 x 4.5

Result

Volume = 78.3 u³

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Volume = 121.5 + 78.3

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