SAT数学每日一练daily practice(2018年3月15日)

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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.

MathematicsStandard 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，易伯华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，请戳易伯华SAT数学首页~