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fgiga [73]
3 years ago
12

Concrete is made by mixing cement, sand, and

Mathematics
2 answers:
Minchanka [31]3 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]3 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:

d={1,-1,2,-2,4,-3,3}

r={1,4,9}

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3 years ago
What is 88 + 99<br> Tyler said 88 cupcakes are with 99 pancakes<br> anyone p l a y r o b l o x
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Answer:

187

Step-by-step explanation:

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3 years ago
Use the number 8,6, and 2 and one operation to write an expression that includes an exponent and has a value of 8. Use each numb
podryga [215]

6 + 2^1 = 8 is the expression that includes an exponent and has a value of 8

<em><u>Solution:</u></em>

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8 0
3 years ago
A random sample of 7 fields of durum wheat has a mean yield of 29.8 bushels per acre and standard deviation of 3.62 bushels per
meriva

Answer:

CI = 29.8 ± 3.53

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Step-by-step explanation:

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5 0
3 years ago
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quester [9]

Answer:

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y = [xl - 9  does NOT represent a linear function; it's an absolute value function.  This function has two halves, each of which is a linear function.

But the best answer here is that y = 9 - X   is a linear function; x is to the first power.

3 0
3 years ago
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