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3 years ago

How much should you invest at 2.1% simple interest in order to earn $85 interest in 7 months?

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

3 0

Answer:

$6938.78

Step-by-step explanation:

Interest = Principal x Rate x Time (in years)

let 'P' = Principal

85 = P × .021 × $\frac{7}{12}$

85 = .01225P

85 / .01225 = P

6938.78 = P

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Answer:

256√3 in^2.

Step-by-step explanation:

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4 years ago

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A man buys a racehorse for $20,000 and enters it in two races. He plans to sell the horse afterward, hoping to make a profit. If

victus00 [196]

Answer:

The expected profit is $10,600.

Step-by-step explanation:

The expected profit can be calculated as the sum of the possible outcomes weighted by their probability of occurrence.

In this case, there are four possible outcomes:

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The probability of this outcome is:

$P(ww)=P(w1)*P(w2)=0.2*0.3=0.06$

2) The horse win the first race, but lose the second one. The value will be $50k-$20k=$30k.

The probability is:

$P(wl)=P(w1)*(1-P(w2))=0.2*(1-0.3)=0.2*0.7=0.14$

3) The horse lose the first race, but win the second one. The value will be $50k-$20k=$30k.

The probability is:

$P(lw)=(1-P(w1))*P(w2)=(1-0.2)*0.3=0.8*0.3=0.24$

4) The horse lose both races. The value will be $10k-$20k=-$10k.

The probability is:

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Then, the expected profit can be calculated as:

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3 years ago

an airplane flies from city a to city b, which is 100 kilometers north and 150 kilometers west of city a. how far does the plane

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Step-by-step explanation:

so it travels 100 kilometers north and another 150 kilometers north so 100+150 is 250 kilometers

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2 years ago

£ represents 29 students in a class

ser-zykov [4K]

Answer:

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3 years ago

Help Please . its due in 5 hours and i cant find answers

dolphi86 [110]

Answer:

39 pi cubic inches

Step-by-step explanation:

The volume of a cone is (1/3)(area of the base)(height).

$V=\frac{1}{3}Bh$

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$2\pi r = 6\pi\\\\r=3$

Now that you know the radius of the circular base, you can find its area:

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3 years ago

How much should you invest at 2.1% simple interest in order to earn $85 interest in 7 months?​

How much should you invest at 2.1% simple interest in order to earn $85 interest in 7 months?