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Marizza181 [45]
3 years ago
13

82 is 70% of what number

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0
70% is the same as saying "0.7 times" the number. 

<span>83 = 0.7x </span>
<span>x = 83/0.7 </span>
<span>x = 83 x (10 / 7) </span>
<span>x = 830/7
</span><span>so the answer is 118.57</span><span>

</span>
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Ed's age is twice that of his brother. When you add Ed's age to his brother's age, you get 36. How old is each brother?
svlad2 [7]

The answer to your question is,

Ed is 27. His brother is 9.

How did I get this answer?

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-Mabel <3

6 0
4 years ago
Don't know this one, please help
vekshin1

Answer:

D) 45/n 11

Step-by-step explanation:

(6n^-5(3n^-3)

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3 0
3 years ago
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Does anyone know this and if it is extraneous or not?
Anna11 [10]
Addd 4 to both sides
\sqrt{x+9}=5
sqare both sides
x+9=25
minus 9 both sides
x=16

plug it in for x and see
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\sqrt{25}-4=1
5-4=1
1=1
true

not extraneous
an extraneous root would be x=-34
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3 years ago
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