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SAT数学每日一练daily practice(2018年3月15日)

小站整理2018-03-16 20:03:52

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摘要：春天来了，18年的sat考试也来临了，小可爱们准备的怎么样了？sat每日一题的内容是由sat官方所出，质量虽不比真题，但备考期间，由于有效备考资料珍贵有限。大家可以每天拿官方的Daily Practice来练手。以下是2018年3月15日的SAT数学练习。

2018年3月15日的sat数学每日一练如下：

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

Mathematics>Standard Multiple Choice

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

Karim has a $35 gift card to his favorite restaurant. The tax on his meal is 14.3%. Karim would also liketo leave a $5 tip. If c represents Karim's pretax bill, in dollars, and he wants to pay the entiremeal amount, including tip and tax, using the gift card, which of the following inequalities bestmodels the situation described above?

以下哪种不平等最能模拟上述情况?

A.1.143c-5≥35

B.1.143c+5≤35

C.0.143c-5≤35

D.0.143c+5≥35

正确答案：B

相关解析：

Choice B is correct. Karim's total meal cost consistsof three parts: Karim's pretax bill, the tax, and thetip, all added together. That amount will need to beless than or equal to Karim's gift card amount.

Since c represents the cost, in dollars, of the pretax bill, it should be multiplied by 0.143 (thetax in decimal form). Since Karim has decided to tip $5, the total meal cost can be representedby the expression space c+0.143c+5.

Next, combine like c terms to get 1.143c. So, the final inequality for Karim's situation is1.143c+5≤35.

以上就是为大家整理的3月15日的sat数学每日一练的内容。各位小可爱们，在备考的过程中，放松好心情，保持练题和模拟，有问题及时和老师或者同学进行沟通，小站sat频道会一直陪伴着你们哦，好好加油，小可爱们!向春天粗发~想了解更多SAT数学每日一练内容，请戳小站SAT数学首页~

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