为了给同学们提供更多关于SAT备考的资料，今天
选择题
1.In a certain game, a player can solve easy or hard puzzles. A player earns 30 points for solving an easy puzzle and 60 points for solving a hard puzzle. Tina solved a total of 50 puzzles playing this game, earning 1,950 points in all. How many hard puzzles did Tina solve?
A) 10 B) 15 C) 25 D) 35
5.To cut a lawn, Allan charges a fee of $15 for his equipment and $8.50 per hour spent cutting a lawn. Taylor charges a fee of $12 for his equipment and $9.25 per hour spent cutting a lawn. If x represents the number of hours spent cutting a lawn, what are all the values of x for which Taylor’s total charge is greater than Allan’s total charge?
A) x > 4 B) 3≤ ≤4 x C) 4≤ ≤5 x D) x < 3
7.A car traveled at an average speed of 80 miles per hour for 3 hours and consumed fuel at a rate of 34 miles per gallon. Approximately how many gallons of fuel did the car use for the entire 3-hour trip?
A) 2 B) 3 C) 6 D) 7
9.If f( − 1) = 2 + 3 x x for all values of x, what is the value of f(−3) ?
A) −7 B) −5 C) −3 D) −1
15.A truck enters a stretch of road that drops 4 meters in elevation for every 100 meters along the length of the road. The road is at 1,300 meters elevation where the truck entered, and the truck is traveling at 16 meters per second along the road. What is the elevation of the road, in meters, at the point where the truck passes t seconds after entering the road?
A) 1,300 − 0.04t B) 1,300 − 0.64t C) 1,300 − 4t D) 1,300 − 16t
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