Question

数学。要用英文回答。＋解释

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?

Answer 1

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

Answer 2

6 regular donuts for 45 cents each is two dollars seventy cents

9 premium donuts for 45 cents each is four dollars and five cents

9 premium donuts for 55 cents is four dollars ninety five cents

Total: $11.70 for two dozen donuts

About forty nine cents for each donut.

Answer 3

What is the question