大师作文网要用英文回答.stan bought donuts for a drama club meeting he bought
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要用英文回答.
stan bought donuts for a drama club meeting he bought 6 regular donuts for 45 cents each and 9 premium donuts for 45 cents each and 9 premium donuts for 55 cents each how much did he spend what was the mean price per donut?
stan bought donuts for a drama club meeting he bought 6 regular donuts for 45 cents each and 9 premium donuts for 45 cents each and 9 premium donuts for 55 cents each how much did he spend what was the mean price per donut?
For 6 regular donuts,he spent:
6 * $0.45 = $2.70;
For 9 premium donuts,he spent:
9 * $0.55 = $4.95;
Total is:
$2.70 + $4.95 = $7.65
mean price is:51 cents per donut.
$7.65/(6+9) = $0.51
6 * $0.45 = $2.70;
For 9 premium donuts,he spent:
9 * $0.55 = $4.95;
Total is:
$2.70 + $4.95 = $7.65
mean price is:51 cents per donut.
$7.65/(6+9) = $0.51
要用英文回答.stan bought donuts for a drama club meeting he bought
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