Syaralopez
17.12.2020 •
Mathematics
Mary earns $12 per hour, plus 10% commission on all her sales. Mary worked 10 hours and her sales were $1,500. How much
money did Mary earn?
A $135
B. $160
C. $175
D. $270
Solved
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Ответ:
.. x/24 = 1/2 . . . . . = cos(60°)
.. x = 12
.. y/x = √3 . . . . . . = tan(60°)
.. y = 12√3