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Basile [38]
2 years ago
6

Last week a candle store received $515.90 for selling 30 candles. Small candles sell for $11.25 and large candles sell for $22.4

0. how many large candles did the store sell?
Mathematics
1 answer:
alex41 [277]2 years ago
8 0

Answer:

16

Step-by-step explanation:

x+y=30  solve for x   x=30-y

substitute x with 30-y and solve

11.25x+22.4y=515.9

11.25(30-y)+22.4y=515.9

337.5+11.15y=515.9

11.15y=178.4

y=16

since we're solving for just large candles it's 16

if need small cangle number 30-16=14

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The sum of the first term of an ap is 240 and the sum of the next 4 term is 220 find the first term of the ap
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Step-by-step explanation:

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S2 = T(x+4) + T(x+5) + T(x+6) + T(x+7) = 4*T(0) + (x+5 + x+6 + x+7 + x+8)d = 220

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Since T(0) has not been defined, it could be any number.

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