2018年SAT官方数学考试习题答案及解析3

>> SAT考试模拟题：2018年SAT官方数学考试习题答案及解析3

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Math: Calculator Permitted

Read the following question and then select the best answer.

Three electricity plans are available in a certain county. The monthly usage and corresponding charges for that usage for three households, each using a different plan is shown below. Which plan, if any, has the lowest cost per kilowatt-hour left parenthesis text kWh end text right parenthesis?

Select an Answer

A.Plan A

B.Plan B

C.Plan C

D.The plans all cost the same amount per kilowatt-hour.

答案及解析：A

EXPLANATION

For Plan A: $ 106.50/ 930 kWh≈$0.11per kWh

For Plan B: $ 110.70/ 900 kWh≈$0.12per kWh

For Plan C: $ 115.20/ 810 kWh≈$0.14per kWh

以上就是小编整理的SAT数学试题，虽然不比原题但日常练手还是足够的~同学们抓紧时间做考试成绩一定会有所提升的。如果您还想练习更多SAT数学模拟题，登录坦途网SAT考试频道，习题多多欢迎来访。