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 10 months ago
A store sells batteries in packets of 6 or 10. It has a stock of 25 packets containing a total of 186 batteries. How many of these are 10battery packets?
 10 months ago
A store sells batteries in packets of 6 or 10. It has a stock of 25 packets containing a total of 186 batteries. How many of these are 10battery packets?

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bahrom7893
 10 months ago
Best ResponseYou've already chosen the best response.2So suppose you have x packets of 6 and y packets of 10. The total number of batteries would be: 6*x + 10*y = 186

bahrom7893
 10 months ago
Best ResponseYou've already chosen the best response.2In total, you have 25 packets, so the sum of all the packets containing 6 and 10 batteries is: x+y=25

kc_kennylau
 10 months ago
Best ResponseYou've already chosen the best response.0And we don't usually write the asterisk (*) if it's not necessary, so it'd be 6x+10y=186

bahrom7893
 10 months ago
Best ResponseYou've already chosen the best response.2Solve the system: 6x+10y=186 x+y=25 y will be the number of 10battery packets
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