TAILIEUCHUNG - Brownstein S., et al. Barron's GRE.12th.ed.(Barrons)(669s)(1997) Episode 2 Part 3

Tham khảo tài liệu 'brownstein s., et al. barron's .(barrons)(669s)(1997) episode 2 part 3', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 382 Mathematics Review 15. How does the percent of the total budget spent by Family A for health compare with the percent of the total budget spent by Family B for health A Family A spent 200 more of its budget on health than did Family B. B Family B spent 50 more of its budget on health than did Family A. C The amounts spent by the two families were unequal but the percentages of the totals were equal. D Family A spent 5 less of its budget on health than did Family B. E Family B spent 5 less of its budget on health than did Family A. Family A spent 2 of the 20 units or 10 of the total on health. Family B spent 1 of the 20 units or 5 of the total on health. The correct choice is E. 16. What percent of Family c s budget went for housing and entertainment A 16 B 25 C 33 D 50 E 75 For Family c housing 4 units and entertainment 6 units for a total of 10 units. Review of Formulas The number next to each formula refers to the section of the chapters where the formula is discussed. Interest Amount X Time X Rate l-D-2 Discount Cost X Rate of discount l-D-2 -b Jb2-4ac 2aL J quadratic formula ll-B-5 Distance Speed X Time ll-C-2 a2 b2 c2 where a and bare the lengths of lll-D-1 the legs and c is the length of the hypotenuse of a right triangle Pythagorean theorem Diameter of a circle 2 X Radius III F Area of a square s2 lll-G-1 Area of a rectangle z_w lll-G-1 20 2 or Ch ice Đ 17. How does the food bill for Family A compare with the food bill for Family c Area of a triangle Ibh Area of a circle nr2 Area of a parallelogram bh III G 1 lll-G-1 III G 1 A Family A spent twice as much for food as did Family c. B Family c spent one-half as much for food as did Family A. C Family A and Family c spent the same amount for food. D Family A spent 2 A times as much as did Family c. E Family c spent 2 i times as much as did Family A. Though the number of units spent for food is twice as great for Family A this is a case of a larger part of a smaller whole annual income of 20 000 compared .

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