Questions on Algebra: Decimal numbers, power of 10, rounding answered by real tutors!

Tutors Answer Your Questions about decimal-numbers (FREE)

Question 1121813:
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Question 1121962:
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Question 1123196:
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Question 1123314: In your Economics course you learned that as of August 2017, the national debt was about 19.9 trillion dollars, and there were about 326 million people in the United States. The national debt is not just an abstract figure. The American people actually owe it. Determine how much each person in the United States owes. Round your answer to the nearest $100. Express your numbers in scientific notation while doing your calculation. ________________
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Question 1123893: Ahmad brought a number of shares for Rs 1875.he reserved 15 of theme and sold remaining for Rs1740 making a profit of 4 per share on the cost price.how many share did he buy.
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Question 1124102:
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Question 1125004: A measuring cylinder contains 20cm^3 of water. When ten identical stell balls are immsersed in water the water level rises to 50cm^3. If one ball has mass of 27g, what is the density of stell in g cm^-3?
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Question 1125301: Differentiate the given function
Y = (8x^3 + 7x +1)^7/2
exponent is 7/2
please solve this step by step plz
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Question 1125437: Q: ligjt travel at the speed of 300,000,000 m/s.
i) Express this speed in standard form
ii) Given that the mean distance from sun to Jupiter is 778.5 million kilometers, find the time taken in minutes and seconds, for light to travel from Sun to Jupiter.
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Question 1125488: Deposits of $250 per month are put into an investment plan that pays an APR of
4.2%. How much money will be in the plan after 25 years?
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Question 1125559: The table shows that approximate population of the world in the past centuries.
YEAR WORLD POPULATION
1549 4.20x10^8
1649 5.45x10^8
1749 7.28x10^8
1849 1.17x10^9
Find,
i) the number of times that the population in 1849 is as large as that in 1649,
ii) the number of times that the population of China is as large as that of the world in 1749 given that the population of China in year 2000 is approximately 1.23 billion where 1 billion = 10^9
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Question 1125569: On a journey from planet P to Venus a rocket is traveling at a constant speed. During the journey the rocket Travels past the moon in 4.8x10^5 km.
i) Find the distance travelled by the Rocket in 12 days and give your answer in standard form.
ii) Given that the distance between planet P and Venus is 4.8x10^7 km, find the time taken in days for the journey.
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Question 1125557: On a journey from Planet P to Venus a rocket is traveling at a constant speed. During the journey the rocket Travels past the moon in 4 days. The distance from planet P to the moon is 4.8x10^5 km.
i) Find the distance travelled by the Rocket in 12 days and give your answer in standard form.
ii) Given that the distance between planet p and the Venus is 4.8x10^7 km, find the time taken, in days, for the journey.
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Question 1125760:
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Question 1110930: the diagram shows a partly filled oil tank
width=2
length=5
height =3
the depth of oil in the tank is 1.2m
1 cubic metre is equivalent to 1000 litres
work out the quantity of oil in the tank
give your answer in litres
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Question 1126925: Round 143.064 to seven decimal places. (The horizontal bar is over the 64)
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Question 1127991: Five swimmers are entered in a competition. Four of the swimmers already completed
their turns in the competition. Their times are 9.8 seconds, 9.75 seconds, 9.79 seconds,
and 9.81 seconds. What time must the last swimmer get so their average time is 9.8
seconds?
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Question 1128321: Kristen picked 11 bushels of Macintosh apples and 9 bushels of Delicious apples. What percent were Macintosh?
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Question 1128324: A person earns $1400 per month and saves $42 each month. What percentage of the salary is saved each month?
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Question 1128323: There are 18 women and 27 men in a class. What percent are men?
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Question 1128322: Mary bought a new suit at a 15% saving. How much did she spend if the original cost of the suit was $120?
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Question 1128320: Change 1/2 % to a decimal
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Question 1131455:
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Question 1132282:
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Question 1133139: solve each proportion then find another equlivent ratio x over 15 is equal to 12 over 90

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Question 1133139: solve each proportion then find another equlivent ratio x over 15 is equal to 12 over 90

Click here to see answer by greenestamps(13200)

Question 1133155: Consider all 6-digit numbers consists of each of the digit 0 1 2 3 4 5 exactly once in some order. If they are arranged in ascending order, what is the 502nd number ?
I got 504231 but the book says 504321. Please help. Thanks
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Question 1134179:
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Question 1134138: lf M subscript six is equal to 123 subscript five,find the value of M.
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Question 1135647: A worker is getting a 5% raise his current salary is 35,560 dollars how much will his raise be
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Question 1135646: A worker is getting a 4.5% raise
His current salary is $39,525 how much will his raise be
Type an integer or round to two decimal places to
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Question 1136397:
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Question 1137596: what is 4x1+8x0.1+9x0.01
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Question 1138960: If a person worked 39.5 hours and earned $369.33. How much did she earn per hour. (please show demonstration)

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Question 1732: What is the answer of 10 to the 2nd power?

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Question 1732: What is the answer of 10 to the 2nd power?

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Question 1145234: The number of registered vehicles on the road in a country is constantly increasing. In 2009, there were approximately
390 million registered vehicles. This represents a
7% increase over 2002. How many registered vehicles were there in the country in 2002? Round to the nearest million.
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Question 1145700: Convert 41.9degrees and 74.28degrees to the nearest degree, minutes and seconds. Please show working
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Question 1145700: Convert 41.9degrees and 74.28degrees to the nearest degree, minutes and seconds. Please show working
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Question 1145699: Convert 41.9degrees and 74.8degrees to the nearest minutes. Please show working
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Question 1147136: What length is 1/4 of 84.8m?

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