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Eddi Din [679]
3 years ago
12

Solve for x: x2 + 8x = -1

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
7 0
x^2+8x=-1\\
x^2+8x+16-16=-1\\
(x+4)^2=15\\
x+4=\sqrt{15} \vee x+4=-\sqrt{15}\\
x=-4+\sqrt{15} \vee x=-4-\sqrt{15}
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Answer:

Jane invested $37,000 in Fund B.

Step-by-step explanation:

Let;

IA = Amount invested in Fund A = $6,000

IB = Amount invested in Fund B = ?

PA = Amount of profit from Fund A = IA * 8% = $6,000 * 8% = $480

PB = Amount of profit from Fund B = IB * 2%

Therefore, we have:

Total profit = PA + PB = $1220 ........................ (1)

Substitute the relevant values into equation (1) and solve for IB, we have:

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IB * 2% = $1220 - $480

IB * 2% = 740

IB = 740 / 2%

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Therefor, Jane invested $37,000 in Fund B.

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Answer:

They can make 49 hamburgers

Step-by-step explanation:

4 0
3 years ago
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Marina CMI [18]

Answer:

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Step-by-step explanation:

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