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slamgirl [31]
4 years ago
6

Can someone tell me the answer for this?

Mathematics
2 answers:
borishaifa [10]4 years ago
4 0
36^{2} + 18^{2} = c^{2}... A squared + B squared = C squared
1296 + 324 = c^{2}... square 36 and 18
1620 = c^{2}... combine like terms
40.25... square root 1620 to get final answer- 40.25 m
goldenfox [79]4 years ago
3 0
Do 18 squared plus 36 squared and then what u get you have to square root it<span />
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Find the cost of something after a discount
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Take the discount. Let's call it x%. Turn it into a fraction, and multiply it by the item. Let's call the item "i". 
The amount discounted is \frac{ix}{100}.
Now subtract this from the original cost of the item. 

Therefore, i - \frac{ix}{100} is the solution.

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Step-by-step explanation:

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Which of the following options have the same value as 30\%30%30, percent of 818181?
Nataly_w [17]

Answer:

Option B is correct = 0.3 \times 81

Step-by-step explanation:

<u>The complete question is:</u> Which of the following options have the same value as 30% of 81?

Group of choices is:

(A) \frac{30}{100}\times 81 \times 100

(B) 0.3 \times 81

(C) 0.03 \times 81

(D) \frac{3}{10}\times 81 \times 10

(E) 30 \times 81

Now, the expression given to us is 30% of 81.

Simplifying the above expression we get;

   30% of 81  =  \frac{30}{100} \times 81

                     =  \frac{3}{10} \times 81  =  0.3 \times 81

Now, we will solve each of the given options and then see which option matches with our calculation.

Option (A) is given;

\frac{30}{100}\times 81 \times 100  =  30 \times 81

This doesn't match with our answer, so this option is not correct.

Option (B) is given;

0.3 \times 81  

<u><em>This matches with our answer, so this option is correct.</em></u>

Option (C) is given;

0.03 \times 81  

This doesn't match with our answer, so this option is not correct.

Option (D) is given;

\frac{3}{10}\times 81 \times 10  =  3 \times 81

This doesn't match with our answer, so this option is not correct.

Option (E) is given;

30 \times 81  

This doesn't match with our answer, so this option is not correct.

6 0
4 years ago
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