2 years ago

7/9=2n+1/9 What is the value of n?

Mathematics

1 answer:

Rudiy272 years ago

3 0

$\frac{7}{9} = 2n + \frac{1}{9}$
$7 = 18n + 1$
$6 = 18n$
$\frac{6}{18} = n$
$\frac{1}{3} = n$

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3 years ago

After spending 30% of her salary Sara was able to deposit $120 in the bank. What is her salary?

Katena32 [7]

Answer: $400

Step-by-step explanation:

So first you set it up in a equation. You put the amount she put in the bank over x (the x represents her full salary) which equals the percent she already spent over her full salary. That would be 120/x=30/100 you would then cross-multiply to get 12,000 = 30x. you then divide 30 from both sides to get x =400.