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ikadub [295]
3 years ago
15

the sum of the first six terms of GP is 9 times the sum of the first three terms find the common ratio​

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
3 0

Answer:

If the sum of first 6 terms is 9 times to the sum of first 3 terms of the same G.P., then common ratio of the series will be. Solution: Let a be the first term and r be the common ratio of the GP. Hence option (2) is the answer.

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A person bought some cosmetics from wholesale market at the rate of Rs 360 per dozen he sells it at Rs 80 a pair find the gain p
marusya05 [52]

Answer:

33.33%

Step-by-step explanation:

We need to calculate the <u>unit selling price and cost of each cosmetics.</u>

If a person bought some cosmetics from wholesale market at the rate of Rs 360 per dozen., then for 1 cosmetics, we will say;

x = 1 cosmetic

since 360 = 12 cosmetic

cross multiply

12x = 360

x = 360/12

x = 30

Hence the unit cost price of the cosmetics will be Rs. 30

Similarly, if he sells it at Rs 80 a pair, then he sold one cosmetic at 80/2 = Rs. 40 (a pair is 2 cosmetics)

Selling price per unit = Rs. 40

Cost price per unit = Rs. 30

percent gain = SP-CP/CP * 100%

percent gain = 40-30/30 * 100

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percent gain = 100/3

percent gain = 33.33%

Hence the percentage gain is 33.33%

5 0
3 years ago
I need help on number two
SVEN [57.7K]

Answer:

2 y = 100

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Step-by-step explanation:

To find the answer divide Y by X since y is 200 in the first and x is 1 divide 200 by the second one and you will find you answer.

8 0
3 years ago
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kodGreya [7K]

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Alexxandr [17]
The answer is 3/1 - the positive one
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Suppose that 65% of all registered voters in a certain area favor a waiting period before the purchase of a handgun. Among 225 r
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