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Svetradugi [14.3K]
3 years ago
15

Laura invests $2500 in one account and $1500 in an account paying 2 % higher interest. At the end of one year she had earned $11

0 in interest. At what rates did she invest?
Mathematics
1 answer:
Crank3 years ago
6 0

Answer:

$2500 - 2%

$1500 - 4%

Step-by-step explanation:

Say the interest for the $2500 is x, so the interest for the $1500 is x+0.02.

As an equation, they would look like this:

2500x+1500(x+0.02)=110

Now solve

2500+1500x+30=110

4000x=80

x=0.02

That means the interest for the $2500 is 0.02, or 2%, and the interest for the $1500 is 0.04, or 4%.

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5x+8+3x+4=-40+4

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7 0
3 years ago
Approximately 32,300 citizens of a country died in automobile accidents in 2015, express this toll in deaths
eimsori [14]

Roughly 88-89 citizens died in automobile accidents per day.

32,300 is the number of people in one year, so in order to find the daily count we need to divide that number by the number of days in a year, 365.

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7 0
3 years ago
Solve by canceling <br><br> -5x+8y=-4<br> 6x-8y=-12
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Step-by-step explanation:

-5x+8y=-4

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To solve for y, substitute x=-16 back into the first equation

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Step-by-step explanation:

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3 years ago
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