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miv72 [106K]
2 years ago
7

Geraniums are $2.95 each. How much will 5 plants cost? (include 7% sales tax.)

Mathematics
1 answer:
Vilka [71]2 years ago
4 0
2.95x5=14.75 7% of 14.75=1.0325 14.75+1.0325=15.7825 or just $15.78
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Find the value of x.
alisha [4.7K]

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2 years ago
What is the value of a when we rewrite 8^x as a^-x/9​
Andre45 [30]

Answer:

a = \frac{1}{134217728}

Step-by-step explanation:

Given

8^x = a^{-x/9}

Required

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Take log of both sides

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Apply law of logarithm

x\ log(8)  = (-x/9) log(a)

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Multiply both sides by -9

-9\ log(8)  = log(a)

Apply law of logarithm

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Cancel out log

8^{-9}  = a

Rewrite as:

a = 8^{-9}

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4 0
3 years ago
Mr. Drysdale earned 906.25 in interest in one year on money that he had deposited in
VikaD [51]

Answer: Mr Drysdale deposited 14,500

Step-by-step explanation:

Using the simple Interest formula

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I = P*R*T

I = PRT

To get P which is the initial money he deposited, we divide both sides by RT

I/RT = PRT/RT

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P = I/RT

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P= 906.25/0.0625

P= 1450

The money he deposited in his local bank is 14,500

5 0
3 years ago
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