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Agata [3.3K]
4 years ago
15

Find two consecutive positive integers such that the square of that the square of the larger integers is nineteen more than nine

times the smaller integer.
Mathematics
1 answer:
il63 [147K]4 years ago
5 0
Let the consecutive positive integers be x and x+1.
According to the question,
(x+1)^2=19+9x
x^2+2x+1=19+9x
x^2-7x-18=0
(x-9) and (x+2)=0
x=9 and x=-2(rejected)
Therefore, the consecutive positive integers are 9 and 10.

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You want to purchase a new car in 5 years and you anticipate the cost of the car to be $55,000. You are given an investment plan
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Wow - that is an unusual calculation.  You'll need a formula for the monthly payment of a monthly annuity, and it is located here:
http://www.1728.org/annuity3.htm  (see formula 2)
You'll find THAT page and THIS page very helpful:
http://www.1728.org/annuitym.htm


rate = rate / 1,200
rate = <span> <span> <span> 0.005166666667 </span> </span> </span>
n= number of months = 5 * 12 = 60

monthly amount = [Total] / ([(1 + rate)^(n+1) -1] / [rate]) -1

monthly amount =
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monthly amount = 55,000 / [[<span><span>1.3693761617</span> -1</span>] / .005166666667]-1
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monthly amount = 55,000 / ((<span> <span> <span> 71.4921603244)-1)
</span></span></span>monthly amount = 55,000 / (<span> <span> 70.4921603244)</span></span>
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4 years ago
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6.28

Step-by-step explanation:

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4 years ago
As an estimation we are told £3 is €4.
hram777 [196]

Answer:

From the estimation,

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Step-by-step explanation:

Given the conversion rate between the pounds and the euro currencies, we are to convert an amount in pounds to euros

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To move from here, we simply cross multiply.

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