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Ivahew [28]
3 years ago
12

There are 20 boys and 20 girls in a classroom.

Mathematics
1 answer:
Ede4ka [16]3 years ago
7 0

Answer:20

Step-by-step explanation:

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<h3>Answer:  8</h3>

Work Shown:

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Jim is investing in the stock market. Jim is hoping to earn $2,000 in interest in order to take a trip to Mexico. Stock A earns
Vanyuwa [196]

Given:

Total amount for investment = $32000

Rate of interest for Stock A = 4%

Rate of interest for Stock B = 7%

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To find:

The amount of investments in Stock A and Stock B.

Step-by-step explanation:

Let amount of investments in Stock A = $x

Amount of investments in Stock B = $y

Total amount for investment = $32000

x+y=32000        ...(i)

Rate of interests in Stock A and Stock B are 4% and 7%. Total interests is $2000.

0.04x+0.07y=2000           ...(ii)

From (i) and (ii), we get

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-0.03x=-240

Divide both sides by -0.03.

x=\dfrac{-240}{-0.03}

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Therefore, the amount of investments in Stock A and Stock B are $8000 and $24000 respectively.

8 0
3 years ago
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