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SAT官方每日一题附答案和解析[数学](2019年10月17日)

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Mathematics>Standard Multiple Choice

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

999彩票开户While shopping at his local vegetable market, Julio purchases 5/4 pounds of zucchini and 9/4 pounds of kale. He spends a total of $7.50 on these two types of vegetables. Which of the following equations best models the cost per pound, in dollars, of zucchini, z, and the cost per pound, in dollars, of kale, k, that Julio purchases?

A.(14/4)(z+k)=7.50/2
B.(5/4)z+(9/4)k=7.50/2
C.(14/4)(z+k)=7.50
D.(5/4)z+(9/4)k=7.50



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