The result of increasing the quantity x by 400% is 60. What is the value of x?
Correct answer: A (parsed from the explanation — this source omits an answer key for this item)
Explanation
Choice A is correct. It’s given that the result of increasing the quantity x by 400% 60 + 400 =60 is . This can be written as x b100lx , which is equivalent to +4 =60 5 =60 =12 x x , or x . Dividing each side of this equation by 5 yields x . 12 Therefore, the value of x is . 15 400% 75 Choice B is incorrect. The result of increasing the quantity by is , not 60 240 400% . Choice C is incorrect. The result of increasing the quantity by is 1,200 60 340 , not . Choice D is incorrect. The result of increasing the quantity by 400% 1,700 60 is , not . 40 SAT PRACTICE TEST #5 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 1
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