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283
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Last semester, Professor K taught two classes, A and B. Each student in class A handed in 7 assignments, and each student in class B handed in 5 assignments. How many students were in class A
(1)The students in both classes combined handed in a total of 85 assignments.
(2)There were 10 students in class B
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284
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Was the amount of Johns heating bill for February greater than it was for January?
(1)The ratio of the amount of John's heating bill for February to that for January was $${\frac{26}{25}}$$ .
(2)The sum of the amounts of John's heating bills for January and February a was$183.60.
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285
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If sequence S has 120 terms, what is the 105th term of S?(1) The first term of S is −8.(2) Each term of S after the first term is 10 more than the preceding term.
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286
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If all of the six faces of a concrete block are rectangular, what is the volume of the block?
(1) Each of the four lateral faces of the block has an area of 200 square inches.
(2) The top of the block is square and has an area of 400 square inches.
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287
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Machine R and machine S work at their respective constant rates. How a much time does it take machine R, working alone, to complete a certain job?
(1) The amount of time that it takes machine S, working alone, to complete the job is $${\frac{3}{4}}$$ the amount of time that it takes machin R, working alone, to complete the job
(2)Machine R and machine S, working together, take 12 minutes to complete the job
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288
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If u > 0 and v > 0, which is greater, $${u}^{v}$$ or $${v}^{u}$$?(1) u = 1(2)v > 2
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289
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What was the range of the selling prices of the 30 wallets sold by a certain store yesterday?(1) $$\frac{1}{3}$$ of the wallets had a selling price of $24 each.(2) The lowest selling price of the wallets was $$\frac{1}{3}$$ the highest selling price of the wallets.
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290
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Three houses are being sold through a real estate agent. What is the asking price for the house with the second-largest asking price?(1) The difference between the greatest and the least asking price is $130,000.(2) The difference between the two greater asking prices is $85,000.
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291
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13. If a+b+c= 12, what is the value of b?
(1)a+b=8
(2)b+c=6
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292
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Is rw = 0?(1) −6 < r < 5(2) 6 < w < 10
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293
|
Is $$x=\frac{1}{y}$$ ?(1) xy = 1(2) $$\frac{1}{xy}=1$$
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294
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How many people in a group of 50 own neither a fax machine nor a laser printer?(1) The total number of people in the group who own a fax machine or a laser printer or both is less than 50.(2) The total number of people in the group who own both a fax machine and a laser printer is 15.
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295
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What is the value of $${w}^{-2}$$?(1) $${w}^{-1}$$ = $$\frac{1}{2}$$(2) $${w}^{3}$$ = 8
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296
|
What is the value of z in the figure above?
(1) x = 50
(2) y = 35
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297
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A certain investment earned a fixed rate of 4 percent interest per year, compounded annually, for five years. The interest earned for the third year of the investment was how many dollars greater than that for the first year?(1) The amount of the investment at the beginning of the second year was $4,160.00.(2) The amount of the investment at the beginning of the third year was $4,326.40.
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298
|
What is the circumference of circle C?
(1)The radius of circle C is 2π
(2)The center of circle C is located at point (7, 8)in the xy-plane
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299
|
What is the value of t ?(1) s + t = 6 + s(2) $${t}^{3}$$ = 216
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300
|
For a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a 6 percent sales tax on both the charge for parts and the charge for labor. If the charge for parts, excluding sales tax, was $50.00, what was the total charge for the repair?(1) The sales tax on the charge for labor was $9.60.(2) The total sales tax was $12.60.
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301
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George has a total of B books in his library, 25 of which are hardcover fiction books. What is the value of B ?(1) 40 of the B books are fiction and the rest are nonfiction.(2) 60 of the B books are hardcovers and the rest are paperbacks.
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302
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Is w + $${h}^{4}$$ positive?(1) h is positive.(2) w is positive.
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