Math

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Round 47.38 to the nearest tenths. (A. 50 B. 47.4 C. 47 D. 47.3)

47.4

1 oz is about 30 cc. Convert 16 oz to cc. (A. 1.875 B. 46 C. 480 D. 0.533)

480

If a circular pizza is divided into 11 equal slices and take five slices, what you fractional part of the pizza is left? (A. 5/11 B. 5/6 C. 6/11 D. 1/2)

6/11

Multiply 0.1963 by 0.00638. (A. 0.001152394 B. 0.1252394 C. 0.0136422 D. 0.001252394)

0.001252394

Order from greatest to least: -10.01 , -10.1 -10.009, -10 (A. -10.1 , -10.01 , -10.009, -10 B. -10.009, -10.1 , -10.01 , -10 C. -10, -10.009, -10.01 , -10.1 D. -10.01 , -10.009, -10.1 , -10)

-10, -10.009, -10.01 , -10.1

Mary wants to take a taxi to a restaurant. She has only $20 for a taxi ride, plus some change in her purse for the driver's tip. The taxi company charges $2.75 to get in the taxi, plus $1.25 per mile. What is the maximum distance to a restaurant that Mary can afford? (A. 13.8 B. 16 C. 14 D. 13)

13.8

The perimeter of a soccer field is 320 yards, and its length is 40 yards more than its width. What are its dimensions? (A. /= 320 yards, w= 40 yards B. /= 60 yards, w= 100 yards C. /= 100 yards, w= 60 yards D. /= 180 yards, w= 140 yards)

/=180 yards, w= 60 yards

Find the product of 0.275 times 0.17. (A. 4.675 B. 0.04675 C. 0.03675 D. 0.04795)

0.04675

Order from least to greatest: 1/4, 1/3, 1/4, 1/5. (A. 1/5, 1/4, 1/3, 1/2 B. 1/4, 1/2, 1/5, 1/3 C. 1/2, 1/3, 1/4, 1/5 D. 1/3, 1/4, 1/5, 1/2)

1/5, 1/4, 1/3, 1/2

Bill is saving for a used car. He has one in mind that costs $5,500. He has $465, and he can add $500 to his savings each month. In how many months can he make the purchase? (A. 11 B. 1 C. 10 D. 14)

11

The success rate for a salesperson is 1 out of 18 calls. At this rate, how many sales would a salesperson expect to get out of 36 calls? (A. 2 B. 18 C. 648 D. 0.5)

2

The sum of two consecutive integers is 4,031 . What are the integers? (A. 4,030, 4,031 B. 2,015.5, 2,015.5 C. 2,015, 2,016 D. 2,014, 2,017)

2,015, 2,016

From 246.7235, take 27.8726. (A. -218.8509 B. 218.8519 C. 208.7510 D. 218.8509)

218.8509

14 gallons are 62% of how many gallons? (A. 8.68 B. 0.2258 C. 22.58 D. 868)

22.58

What number is that which diminished by 12.5% of itself equals 56? (A. 448 B. 64 C. 4.48 D. 7)

64

1 ton (T) equals 2,000 lb. Convert 3,514 1b to T. (A. 7,028,000 B. 0.569 C. 1,514 D. 1.757)

1.757

Which of the following numbers is irrational? -5/4, 11.00023, 5.34343434..., 0.202002000200002... (A. 5.34343434... B. -5/4 C. 11.00023 D. 0.202002000200002...)

0.202002000200002

Divide 452.92 by 0.052. (A. 87.1 B. 8710 C. 8525 D. 0.0001148)

8710

Mr. Jordan bought a camera for $175 and sold it for 90% of the cost. For how much did he sell the camera? (A. $15,750 B. $157.50 C. $1,575 D. $110)

$157.50

I bought 375 barrels of a certain chemical for $3,000, and sold them for $2,250. How much per barrel did I lose? (A. $750 B. $14 C. $25 D. $2)

$2

Order from greatest to least: -0.01, -0.1 , -0.011 , -0.001 (A. -0.001 , -0.01 , -0.011 , -0.1 B. -0.011 , -0.1 , -0.01 , -0.001 C. -0.1 , -0.01 1 , -0.01 , -0.001 D. -0.01 , -0.01 1 , -0.1 , -0.001)

-0.001 , -0.01 , -0.011 , -0.1

Order from least to greatest: -2/3, 4 5/8 , 2/17, 0.012 (A. -2/3, 2/17, 0.012, 4 5/8 B. 0.012, 2/17, -2/3,4 5/8 C. 0.012, -2/3,4 5/8 , 2/17 D. -2/3, 0.012, 2/17, 4 5/8)

-2/3, 0.012, 2/17, 4 5/8

Convert 0.000304% to a decimal. (A. 304 B. 3.04 C. 0.00000304 D. 34)

0.00000304

A 45-acre farm produced 255 bushels of wheat in 1 year. Use dimensional analysis to convert this rate to liters of wheat per square meter of land. (1 acre=4,046.825 m2; 1 bushel=35.23907 L.) (A. 20.27 B. 99.9 C. 0.05 D. 808, 102.6)

0.05

Convert 25% to a decimal. (A. 0.25 B. 2500 C. 0.0025 D. 25)

0.25

If 100 1b flour make 135 1 -1b loaves of bread, what is the unit rate of loaves of bread per pound of flour? (A. 13.5 B. 1.35 C. 135,000 D. 0.74)

1.35

5,280 ft equal 1 mi. Use dimensional analysis to convert 70 mph to feet per second. (A. 102.67 B. 47.73 C. 1,330,560,000 D. 0.021)

102.67

1 mile is about 1 .61 km. The speed of light is about 186,000 miles/sec. Use dimensional analysis to convert this to km/hr. (A. 83.183 B. 415,900,621 C. 0.0312 D. 1,078,056,000)

1078056000

Tom is saving money to go to a concert. From his part-time job, he is able to save $18.50 per week. His older brother gave him $25 to start. In how many weeks will Tom have saved at least $235? (A. 11 B. 13 C. 7 D. 12)

12

In 2.5 days, a paper mill produced 43.75 tons of paper. How many pounds of paper did it make per hour? (A. 9,114.6 B. 1,458.33 C. 840,000 D. 0.0007)

1458.33

Name the numerator of 15/212. (A. 2 B.15 C. 212 D.5)

15

If a person walks 60 miles in 4 days, what is the constant of proportionality in miles/day? (A. 15 miles/day B. 0.067 miles/day C. 240 miles/day D. 60 miles/4 days)

15 miles/day

Estimate the following sum with front-end estimation: 56 + 49 + 17 + 21 + 36. (A. 179 B. 150 C. 190 D. 25)

150

Estimate the sum of the following numbers by rounding to the nearest tens: 3,785; 4,651; 3,278; 5,964. (A. 17,680 B. 17,678 C. 17,660 D. 17,000)

17680

Estimate the sum of the following numbers by rounding to the nearest hundreds: 3,785; 4,651; 3,278; 5,964. (A. 18,000 B. 17,400 C. 17,678 D. 17,800)

17800

Order from least to greatest: 2/3, 3/7, 2/9, 4/5. (A. 2/9, 3/7, 2/3, 4/5 B. 2/9, 3/7, 4/5, 2/3 C. 4/5, 2/3, 3/7, 2/9 D. 3/7, 4/5, 2/9, 2/3)

2/9, 3/7, 2/3, 4/5

Harold is 9 years old, and Arthur is 4 years younger. In how many years will Arthur be 25 years old? (A. 12 B. 20 C. 16 D. 25)

20

Name the denominator of 33/21. (A.33 B.2 C.3 D.21)

21

Convert 21.72 to fractional form. (A. 21.72/100 B. 21 72/100 C. 21/72 D. 2172/100)

2172/100

From 246.7235, take 27.8726. (A. -218.8509 B. 218.8519 C. 208.7510 D. 218.8509)

218.8509

Subtract 247.36 - 25.9734. (A. 221.3966 B. 221.3866 C. 212.4951 D. 244.76266)

221.3866

Estimate the following sum with front-end estimation: 381 + 3,468 + 193 + 8,200 + 57 + 93 + 3,956 + 4,1 84 + 324 + 47 + 596 + 1,938. Use an adjustment with the hundreds place front ends. (A. 23,437 B. 19,000 C. 22,999 D. 22,700)

22700

A 150-acre field yielded 3,600 bushels of wheat. What is the unit rate of bushels per acre? (A. 24 B. 540,000 C. 360 D. 0.042)

24

Sam bought a used book for $2, and sold it for $1 .50. What was his loss in percent? (A. 133% B. 25% C. 75% D. 175%)

25%

Estimate the total of the following numbers by clustering: 45; 54;48; 51 ; 47. (A. 220 B. 50 C. 245 D. 250)

250

If 55 acres of land yield 1,430 bushels of wheat, what is the constant of proportionality in bushels/acre? (A. 0.0385 bushels/acre B. 78,650 bushels/acre C. 26 bushels/acre D. 1,430 bushels/55 acres)

26 bushels/acre

Convert MMDCLXI into Arabic numerals. (A. 2,561 B. 1,661 C. 161 D. 2,661)

2661

I bought a collectible item for $7,650, and sold it for $9,780. What was my gain in percent? (A. 227.84% B. 78.22% C. 27.84% D. 127.84%)

27.84%

A company found an average of 2 defective television for every 10000 checked. If the company produced 150000 television in 1 year, how many of them would be expected to be defective? (A.20000 B.5000 C.30 D.2)

30

Martin spends 12 hr in a 2-week period practicing piano. At this rate, how many hours will he practice in a year (52 weeks)? (A. 624 B. 8.7 C. 24 D. 312)

312

If sound travels 857.5 meters in 2.5 seconds, what is the constant of proportionality in m/sec? (A. 857.5 m/2.5 second B. 343 m/second C. 2143.75 m/second D. 0.0029 m/second)

343 m/second

Estimate the total of the following numbers by clustering: 735; 872; 659; 738; 684. (A. 3,688 B. 3,700 C. 3,500 D. 3,400)

3500

Find the least common denominator: 1/3, 5/9, 1/2, 3/4. (A. 36 B. 216 C. 12 D. 18)

36

The success rate for a salesperson is one out of eight calls. At this rate, how many sales would a salesperson expect to get out of 32 calls? (A. 256 B. 8 C. 4 D. 0.25)

4

What number is that which if increased by 20% of itself equals 48? (A. 240 B. 2.4 C. 960 D. 40)

40

Martin spends 17 hr in a 2-week period practicing piano. At this rate, how many hours will he practice in 5 weeks? (A. 42.5 B. 0.59 C. 85 D. 34)

42.5

A company found an average of five defective televisions for every 1,000 checked. If the company produced 85,000 televisions in 1 year, how many of them would be expected to be defective? (A. 17,000 B. 425 C. 5,000 D. 0.005)

425

Two birds fly in opposite directions from the same tree branch, one 19 miles, the other 27 miles. How far apart are they? (A. 8 B. 33 C. 125 D. 46)

46

Estimate the following sum with front-end estimation: 6,835 + 7,867 + 392 + 8,437 + 24 + 6,174 + 5,762 + 8,600 + 439 + 3,764 + 158 + 99. Use an adjustment with the hundreds place front ends. (A. 47,900 B. 49,120 C. 43,000 D. 48,551)

47900

An excavator used in digging canals handled 45.5 cubic yards of earth in 4.25 min. What was the rate in cubic meters per hour? (1m3 = 1.31 yd3) (A. 490.3 B. 0.002 C. 8,856.9 D. 841.5)

490.3

In a collection of classic computers, there are three Apples, five IBMs, and four Commodores. What fractional part of this collection are IBM computers? (A. 5/12 B. 5/7 C. 3/5 D. 4/5)

5/12

Order from least to greatest: 1 1/5, 5/9, 4/7, 8/3. (A. 8/3, 1 1/5, 5/9, 4/7 B. 4/7, 5/9, 8/3, 1 1/5 C. 8/3, 1 1/5, 4/7, 5/9 D. 5/9, 4/7, 1 1/5, 8/3)

5/9, 4/7, 11/5, 8/3

Compute 7 + 7÷ 7 + 7 х 7 - 7 (А. 56 B. 44 С. 49 D. 50)

50

25 gallons are 5% of how many gallons? (A. 1.25 B. 5 C. 0.5 D. 500)

500

Find the sum of 413.403, 4.12356, 4193.48, 95.631 , 4.1284, and 786.47. (A. 54972.3596 B. 5497.23606 C. 5497.23596 D. 5497.33596)

5497.23596

Find the least common denominator of 1/2, 1/3, 1/4, 1/5. (A. 120 B. 240 C. 14 D. 60)

60

Convert 0.0061 to fractional form. (A. 61/4 B. 61/10,000 C. 6.1/1000 D. 61/100)

61/10,000

Find the sum of 432.5931, 96.845, 9.38, 0.9, 1.93, and 75.125. (A. 616.7731 B. 616.7736 C. 6167.731 D. 626.7731)

616.7731

Divide 2.1828 by 0.034. (A. 65.4 B. 0.0642 C. 64.2 D. 0.0155763)

64.2

The winner of a 5-km automobile race with many curves covered the distance in 2.8 min. What was the racer's average speed in miles per hour? (A. 521.7 B. 172.5 C. 0.015 D. 66.5)

66.5

I bought a computer for $1,750, and sold it for $500. What is my loss in percent? (A. 1.29% B. 28.57% C. 350% D. 71.43%)

71.43%

A boy and his sister played chess over a couple of months, his sister beating him 15 games, which was 1/5 of the number of games played. How many did they play? (A. 60 B. 75 C. 18 D. 3)

75

Darlene is saving up for a vacation that will cost $3,000. She has $150, and can save $375 per month. In how many months will she have enough to cover the vacation cost? (A. 10 B. 8 C. 18 D. 7)

8

Sue decides to collect postcards. She starts her collection with seven cards. Every week, she buys three more cards to add to her collection. How many weeks will it take for her to have more than 30 cards? (A. 11 B. 7 C. 8 D. 30)

8

Bill bought a GPS for $160 and sold it for $25. What was his loss in percent? (A. 540% B. 115.63% C. 15.63% D. 84.38%)

84.38%

Convert DCCCLX into Arabic numerals. (A. 1,360 B. 760 C. 860 D. 122)

860

A child is 4 years old; the mother is 7 times as old as the baby; and the grandmother is twice as old as the mother. What is the sum of their ages? (A. 25 B. 37 C. 88 D. 54)

88

Compute 6 + 2 x (1 + 2). (A. 0 B. 9 C. 1 D. 5)

9

For what temperatures in degrees Fahrenheit will the Celsius temperature be less than 30? Use the formula C=5/9(F-32), where C is degrees Celsius, and F is degrees Fahrenheit. (A. F < 86 B. F < 111 .6 C. 86 D. F > 86)

F< 86

Convert 1,775 to Roman numerals. (A. MDCCLXXV B. MCCCMLXXV C. MDCCXXXCV D. DDDCMW)

MDCCLXXV

Solve 3(7x+ 2) = 5 - (х- 1 ). (А. х = 6/1 1 B. x = 0 С.х = 22 D х = -26)

x = 0

Solve 3/8x = 6 (А. х = -216 В. х = 48 С. х = 45/8 D. x = 16)

x = 16

solve х-17 = З. (А. х= -20 В. x= -14 C. x= 20 D. x=2)

x = 20

Solve х + 21 = -5 (A. x= -26 B. x = 0 C. x= 16 D. х = 26)

x= -26

Convert 3,358 to Roman numerals. (А. MMMDCCMLVlll B. МММСССLVIII C. MMMCCCXXXXXVIII D. DCXLIIМММ)

МММСССLVIII

Solve 2.5х- 3.5 + 5.1x= 3.0 + 1.7х (А. х =6.5 В. х =-26 С. х = 1.1017 D. х = -1.1017)

х = 1.1017

Solve |-2х+ 3|= 4. (A. x = -1/2 B. х = -202 C. x= -7/2 D х= -1/2, 7/2)

х= -1/2, 7/2

Which of the following numbers is irrational? 456/12, 0.33333..., -0.010101 , ん (A. 456/12 B. 0.33333... C. ん D. -0.010101)

50 gallons of syrup cost $75. What is the constant of proportionality in dollars per gallon? (A. 0.667 dollars/gal B. $3750/gal C. $75/50 gal D. $1.50/gal)

$1.50/gal

Mr. Watson earned $15,800 in a year, and his son Rich 65% as much. Find the amount Rich earned. (A. $10,270 B. $5,530 C. $123,000 D. $102,700)

$10,270

An NHL ice hockey rink has a perimeter of approximately 570 ft, and its length is 115 ft longer than its width. What are its dimensions? (A. /= 85 ft, w= 200 ft B. /=342.5 ft, w= 227.5 ft C. /= 570 ft, w= 115 ft D. /= 200 ft, w = 85 ft)

/= 200 ft, w = 85 ft

Multiply the sum of 83 and 74 by their difference, and divide the product by 15. (A. 94.2 B. 10.47 C. 0.6 D. 409.47)

94.2

Solve 2.3x+ 3.2 - 5.1х > 1 - 6.4х- З (А. х > 1.444 В. x > -1.444 C. х = 73.5 D. x < -1.444)

x > -1.444

Three less than three times a number is three more than five times that same number. What is the number? (A. -3 B. No solution C. 3 D. 33)

-3

Estimate the following sum with front-end estimation: 42 + 46 + 34 + 58 + 91 . (A. 12 B. 271 C. 270 D. 250)

250

Solve |3х- 3| = 7. (A. х = 10/3, -4/3 В. х: -21/3 С. х = -4/3 D. х = 10/3, 4/3)

х = 10/3, -4/3

Solve -1/6x < 3/4 + 2/3x (А. х < -9/10 B. x > 9/10 С. х = -26 D. х > -9/10)

х > -9/10

Find the sum of 413.403, 4.12356, 4193.48, 95.631, 4.1284, and 786.47. (A. 54972.3596 B. 5497.23606 C. 5497.23596 D. 5497.33596)

5497.23596

Name the hundreds digit in 9643.0175. (A. 6 B.0 C.1 D.9)

6


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