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Soloha48 [4]
3 years ago
9

How many gallons of 80% antifreeze solution must be mixed with 80gallons of 20% antifreeze to get a mixture that is 70% antifree

ze
Mathematics
1 answer:
kvasek [131]3 years ago
5 0
X=360 GALLONS OF 80% ANTIFREEZE IS USED
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Steve invested money in the stock market. In the first year, his stock increased 50%. He paid his stockbroker $350 and then lost
telo118 [61]

Answer:

Original amount invested = $3400 .

Step-by-step explanation:

Let the original investment of Steve = $x

Stock increased in the first year = 50% of amount invested

Therefore total amount after one year = x + 0.5x = 1.5x

Commission paid to the stock broker = $350

Amount lost by him = $400

Amount withdrawn by him = $300

Total amount decreased from the amount after 1 year

= 1.5x - (350 + 400 + 300)

= 1.5x - 1050

This remaining amount is doubled, so the final amount

= 2(1.5x - 1050)

= 3x - 2100

This final amount is equal to $8100

3x - 2100 = 8100

3x = 8100 + 2100

3x = 10200

x = $3400

Therefore original amount invested in the stock market was $3400 .

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3 years ago
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vitfil [10]

Answer:

I'm pretty sure figure A is the only one correct and also figure D

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3 years ago
- 12 = 2 + 5d + 2d <br> ................
zmey [24]

Answer:

-2

Step-by-step explanation:

12=2+7d

7d= -12-2

7d= -14

d= -14

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7

d= -2

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3 years ago
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6x + 13 = 12x - 20 solutions
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Answer:

6x + 13 = 12x - 20

Step-by-step explanation:

6x + 13 = 12x - 20

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2 years ago
84859&gt;84949 is this statement true or false?
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The answer to this question is:

False. 84859 is less than 84949
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