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saveliy_v [14]
3 years ago
15

A video game system and several games are sold for $700. The cost of the games is three times as much as cost of the system. Fin

d cost of the system and cost of the games
Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
6 0

Answer:

cost of system is $175 and cost of the games is $525

Step-by-step explanation:

Let us take the cost of the system to be X.The games cost 3 times as much as the system and are therefore given 3X. The total cost of the system and the games is $700.Therefore,we form the equation 3X+X=$700.Meaning that 4X=$700 and X is equal to $175.The cost of the system is X therefore it is $175 and the cost of the games is 3X and is therefore $525.

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Answer:

(27.3692 ; 44.6308)

Step-by-step explanation:

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Tcritical at 0.2, df = 12 - 1 = 11 ; Tcritical = 2.718

Confidence interval :

Xbar ± Margin of error

Margin of Error = Tcritical * s/sqrt(n)

Margin of Error = 2.718 * 11/sqrt(12) = 8.6308

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Lower boundary : 36 - 8.6308 = 27.3692

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3 0
3 years ago
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Find the compound Interest for Rs.18,800 ,calculated for 2 years at 13% rate of Interest compounded annually
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For compound interest, the formula is given below:

Amount = P(1+\frac{r}{100} )^{n}

Here, P = 18,800

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So, Amount = 18,800(1+\frac{13}{100} )^{2}

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