作业帮三道英文的数学题 请详细说明一下提干的意思 一定通俗易懂
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三道英文的数学题 请详细说明一下提干的意思 一定通俗易懂
请详细说明一下提干的意思 一定通俗易懂
1.Computering Hourly Wages
Mark is paid time-half for hours worked in excess of 40 hours and double-time(啥意思?) for hours worked on Sunday.If Mark had gross weekly wages of $342 for working 50 hours,4 of which （which代表什么?）were on Sunday,what is her regular rate?
2.Computering Grades
Going inti the final exam,which will count as 2 tests(这里到底啥意思?).Bob has test scores of 80,83,71,61,and 95.What scores does Bob need on the final in order to have an average score of 80?(答案是80 )
3.Personal Finace :Cost of a car
The suggested list priceof a new car is $18,000.The dealer's cost is 85% of list.How much will you pay if the dealer is willing to accept $100 over cost for the car?
2题答案打错了 是 85 不好意思！
请详细说明一下提干的意思 一定通俗易懂
1.Computering Hourly Wages
Mark is paid time-half for hours worked in excess of 40 hours and double-time(啥意思?) for hours worked on Sunday.If Mark had gross weekly wages of $342 for working 50 hours,4 of which （which代表什么?）were on Sunday,what is her regular rate?
2.Computering Grades
Going inti the final exam,which will count as 2 tests(这里到底啥意思?).Bob has test scores of 80,83,71,61,and 95.What scores does Bob need on the final in order to have an average score of 80?(答案是80 )
3.Personal Finace :Cost of a car
The suggested list priceof a new car is $18,000.The dealer's cost is 85% of list.How much will you pay if the dealer is willing to accept $100 over cost for the car?
2题答案打错了 是 85 不好意思！
1.计算每小时的薪水
第一句意思是说如果一星期工作时间超过了40小时,那么超过部分一小时按半小时计算,而周日工作时间薪水加倍.如果马克一星期薪水总共为342,工作了50小时,其中4小时是在星期天完成的,求她平时的薪水水平.
设平时每小时薪水为x,则超过40小时部分每小时薪水为x/2,星期天为2x.则有：40*x+6*x/2+4*2x=342,解得x=6.7
2.which will count as 2 tests应该是权值的意思,就是该科成绩算两科,因此;(80+83+71+61+95+2x)/(5+2)=80,解得x=85
3.应该是0.85%而不是85%吧,如果是0.85%话,给经销商100元,那么原价=100/0.85%=11765,再加100,共应付11865元.
第一句意思是说如果一星期工作时间超过了40小时,那么超过部分一小时按半小时计算,而周日工作时间薪水加倍.如果马克一星期薪水总共为342,工作了50小时,其中4小时是在星期天完成的,求她平时的薪水水平.
设平时每小时薪水为x,则超过40小时部分每小时薪水为x/2,星期天为2x.则有：40*x+6*x/2+4*2x=342,解得x=6.7
2.which will count as 2 tests应该是权值的意思,就是该科成绩算两科,因此;(80+83+71+61+95+2x)/(5+2)=80,解得x=85
3.应该是0.85%而不是85%吧,如果是0.85%话,给经销商100元,那么原价=100/0.85%=11765,再加100,共应付11865元.