六月|SAT数学每日练习题

　　今天课窝网继续为广大备考SAT的人儿带来SAT数学每日一练，检验大家有没有复习全面。配有答案详解，慢慢练习吧。

　　Mathematics>Standard Multiple Choice

　　Read the following SAT test question and thenclick on a button to select your answer.

　　P=100h-2000

　　Mia's law firm has $2000 worth of expenses eachmonth. Her firm charges $100 per hour for legal advice. The given equation shows the firm'sprofit, P, after being paid for h hours of legal advice during a one-month period. What is theminimum number of hours of legal advice that Mia's firm must be paid for during one month inorder to cover the firm's monthly expenses?

　　A.20 hours

　　B.80 hours

　　C.100 hours

　　D.200 hours

　　答案：A

　　解析：

　　Choice A is correct. If the firm only covers themonthly expenses, the profit will be zero. Substituting 0 for P in the given equation andsolving for h will give the number of hours of legaladvice the firm needs to be paid for in order to break even.

　　This can be written as: P=100h-2000 0=100h-2000 h=20

　　以上就是小编为大家带来的SAT数学考点实例讲解。更多SAT考试时间、SAT考试考什么等内容，可以咨询我们。