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3 years ago

Which is the best approximation of √11 1. 3.5 2. 2.5 3 5 4. 5.5

Mathematics

1 answer:

DanielleElmas [232]3 years ago

7 0

Step-by-step explanation:

√11 nearest to √9 prefect square

√9 = 3

√11 = 3.5 approx

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A woman earns $ 1,350 in interest from two accounts in one year. If she has three times as much invested at 7% as she does at 6%

VashaNatasha [74]

Answer:

The woman invested $15,000 at 7% interest rate and $5,000 at 6% interest rate.

Step-by-step explanation:

We are given the following in the question:

Let x be the interest earned from 7% interest rate and y be the interest earned from 6% interest rate.

The woman invested has three times as much invested at 7% as she does at 6%.

Thus, we can write the equation:

$x = 3y$

The total interest is $1,350.

Thus, we can write the equation:

$1350 = \dfrac{7x}{100} + \dfrac{6y}{100}\\\\7x + 6y = 135000$

Solving the two equations by substitution method:

$7(3y) + 6y = 135000\\27y = 135000\\y = 5000\\x = 3(5000) = 15000$

Thus, she invested $15,000 at 7% interest rate and $5,000 at 6% interest rate.

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3 years ago

HELP ASAP PLEASE!!!!

Ugo [173]

Only problem is with the simplifying.

We all know that 5/5 = 1, it is natural to assume (x+a)/(x+a) is also 1, but in some cases where x+a=0, it is undefined. In this equation, where they simplify (x-2) and (x-6), you must say that x is not 2 nor 6 or, you just delete 0/0 which is undefined.

Therefore the only solution would be x=-1

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3 years ago

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Vanderbilt Corporation, which utilizes a calendar year as its fiscal year, is the payee on a $12,000, 7%, 8-month note receivabl

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Given:
Payee: Vanderbilt Corporation
Notes Receivable from Stanford Company
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Debit Credit

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Interest Receivable 560
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Cash 12,560
Notes Receivable 12,000
Interest Receivable 560
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3 years ago

In problems like -20≤5y, when you divide by 5 do you reverse the symbol because -20 is negative?

vampirchik [111]

No, you only reverse the symbol when the divisor is negative

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