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2 years ago

8

PLEASE ANSWER I NEED HELP!!..

1 answer:

nikitadnepr [17]2 years ago

5 0

Please don't post masses of questions all at once. 1-2 problems per post would be more realistic and fairer to others who need help.

Regarding <span>x-2/5 = 1/5

We are to solve for x. To do this, let's remove the fractions by mult. all 3 terms by 5. Then 5x - 2 = 1, or 5x = 3.

Dividing both sides by x, we get x = 3/5 (answer). Check this by subst. 3/5 into the original equation.</span>

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A stockbroker has money in three accounts. The interest rates on the three accounts are 7%, 8%, 9%. If she has twice as much mon

Sveta_85 [38]

Answer:

x=amount invested at 7%

2x=amount invested at 8%

3x=amount invested at 9%

interest=principal*rate*time (time=1 year)

$150=0.07x+0.08*2x+0.09*3x

$150=0.07x+0.16x+0.27x

$150=0.50x

$1500=5x

x=$300 invested at 7%

2x=$600 invested at 8%

3x=$900 invested at 9%

Step-by-step explanation:

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2 years ago

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natima [27]

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erica [24]

1.
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2.
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3.
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4.
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uranmaximum [27]

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hope this helps

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