作业帮有关求百分比,英语题目
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有关求百分比,英语题目
The administration fee for the American Mathematics competition was US4.00dollars for each student. The organiser collected S5.00dollars from each student.If the exchange rate was S1.00dollar=US1.32dollars,calculate the percentage of the amount of money earned or lost by the organiser. 请详细告诉我解法!
The administration fee for the American Mathematics competition was US4.00dollars for each student. The organiser collected S5.00dollars from each student.If the exchange rate was S1.00dollar=US1.32dollars,calculate the percentage of the amount of money earned or lost by the organiser. 请详细告诉我解法!
Because S5.00=US5*1.32=US6.6
So earn each student = US6.6-US4 = US2.6
percentage earned = 2.6/4*100%=65%
So earn each student = US6.6-US4 = US2.6
percentage earned = 2.6/4*100%=65%