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Ready4 <p>Is the distance traveled in t seconds at a feet per second greater than the distance traveled in s seconds at b feet per second?p>
  1. t is 30 greater than s.
  2. a is 30 greater than b.
Ready4 <p>If m is an integer, is m−1 even?p>
  1. m+3 is an even integer.
  2. m−2 is an odd integer.
Ready4 <p>Each person in a group wrote down the number corresponding to the day of month of their birthday. Was any number written down by more than one person in the group?p>
  1. The number of people in the group was greater than 35.
  2. The number of people in the group was less than 41.
Ready4 <p>A legal service costs a dollars for the first hour of service and b dollars for each additional hour. How much does the service cost if it takes 10 hours?p>
  1. The service costs $286 if it takes 2 hours.
  2. The service costs $565 if it takes 5 hours.
Ready4 <p>How many females are members of both the Spanish club and the French club?p>
  1. There were 21 females present at a joint meeting of the members of the Spanish and French clubs, and the only members absent were male.
  2. The Spanish club has 14 female members and the French club has 9 female members.
At a certain company, each employee has a salary grade s that is at least 1 and at most 5. Each employee receives an hourly wage p, in dollars, determined by the formula p = 9.50 + 0.25(s - 1). An employee with a salary grade of 5 receives how many more dollars per hour than an employee with a salary grade of 1?
Ready4 <p>p><p>If arc above is a semicircle, what is the length of diameter ?p> <p>(1) p> <p>(2) p>
OG16 OG17 OG18 OG19 OG20 OG2022 GMAT、gmat题库、gmat模考、gmat考满分The figure above shows a path around a triangular piece of land. Mary walked the distance of 8 miles from P to Q and then walked the distance of 6 miles from Q to R. If Ted walked directly from P to R, by what percent did the distance that Mary walked exceed the distance that Ted walked?
PREP07 Test 2 A certain circular area has its center at point P and has radius 4, and points X and Y lie in the same plane as the circular area. Does point Y lie outside the circular area? (1) The distance between point P and point X is 4.5.(2) The distance between point X and point Y is 9.
Ready4 <p>p><p>In the figure above, what is the value of ?p> <p>(1) p> <p>(2) and are both isosceles and p>
Ready4 <p>Archeology has undoubtedly enriched mankind's understanding of history more than any other discipline. Archeology has unraveled a great part of man's unwritten past. Studying the material remains of past human life and activities may not seem important or exciting to the average person when compared to other scientific pursuits like the biological sciences. But archeology's aim to understand mankind is a noble endeavor that goes well beyond uncovering buried treasures. Knowing what made past cultures cease to exist may indeed provide the key to making sure that history does not repeat itself. p><p>However, when it comes to dating archeological samples, several timescale problems arise. For example, Christian time counts the birth of Christ as the beginning, AD 1 (Anno Domini); everything that occurred before Christ is counted backwards from AD as BC (Before Christ). The Greeks consider the first Olympic Games as the beginning or 776 BC. The Muslims count the Prophet's departure from Mecca, or the Hegira, as their beginning at AD 662. The Mayan calendar used 3114 BC as their reference. As a result, carbon dating began to emerge as the most popular and accepted form of determining the absolute dating of artifacts and events. However, this technique is not without its limitations or risks. p><p>First, the size of the archeological sample is important. Larger samples are better because purification and distillation remove some matter. Although new techniques for working with very small samples have been developed, like accelerator dating, these are very expensive and still somewhat experimental. Second, because the decay rate is logarithmic, radiocarbon dating has significant upper and lower limits. It is not very accurate for fairly recent deposits. In recent deposits so little decay has occurred that the error factor (the standard deviation) may be larger than the date obtained. p><p>Despite all of this, carbon dating remains a useful tool for archeological research, helping archeologists obtain a much needed global perspective on the timing of major prehistoric events.p>
Ready4 <p>p><p>What is the volume of the cube above?p> <p>p> <p>(1) The surface area of the cube is 1014 square centimeters.p> <p>(2) The length of diagonal is centimeters.p>
Magoosh In the x-y plane, point (p, q) is a $$\mathbf {lattice}$$ $$\mathbf {point}$$ if both p and q are integers. Circle C has a center at (–2, 1) and a radius of 6. Some points, such as the center (–2, 1), are inside the circle, but a point such as (4, 1) is $$\mathbf {on}$$ the circle but not $$\mathbf {in}$$ the circle. How many lattice points are in circle C?
Ready4 <p>If money is invested at percent interest, compounded annually, the amount of the investment will double in approximately years. If $6,000 is invested in an account that pays 9 percent interest, compounded annually, approximately how many years will it take for the value of the investment to be 4 times its initial value?p>
Ready4 <p>A metal sheet measuring 18 inches by 30 inches is covered as completely as possible with non-overlapping perfectly circular cookies of identical area in n rows of m cookies. What is the value of nm?p>
  1. Each of the cookies has a radius of 3 inches.
  2. Five cookies in a row fit exactly within the longer dimension of the sheet.
Ready4 <p>How many integers are there between integers i and k, inclusive?p>
  1. k−i=22
  2. There are 21 integers between, but not including, i+1 and k+1.
PREP07 Test 1 Ellen can purchase a certain computer at a local store at the price of p dollars and pay a 6 percent sales tax. Alternatively, Ellen can purchase the same computer from a catalog for a total of q dollars, including all taxes and shipping costs. Will it cost more for Ellen to purchase the computer from the local store than from the catalog?(1)q-p < 50(2)q=1,150
OG12 OG15 OG16 Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and $$\overline{PR}$$ is parallel to the x-axis. The x- and y-coordinates of P, Q, and R are to be integers that satisfy the inequalities $$-4 \le x \le 5$$ and $$6 \le y \le 16$$. How many different triangles with these properties could be constructed?
The velocity, density, and pressure of a certain fluid are related by the equation $$5v^{2}+p=c$$, where v is the velocity in meters per second, P is the pressure in pascals, and c is a constant. If the velocity of this fluid decreases from 10 meters per second to 5 meters per second, by how many pascals does the pressure in the fluid rise?
OG19-数学分册 In a field day at a school, each child who competed in n events and scored a total of p points was given an overall score of $$\frac{p}{n}+ n$$ . Andrew competed in 1 event and scored 9 points. Jason competed in 3 events and scored 5, 6, and 7 points, respectively. What was the ratio of Andrew's overall score to Jason's overall score?