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

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Question 777394: 642*(4.0*10to the negative 5 power ) express with appropriate significant figures .
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Question 555562: Before 1986, a gold bullion in the Federal Reserve Bank was rectangular and had a volume of approximately 727.7 cm3. The density of gold is 19.3 g/cm3. Apound is approximately 454 g. Find the weight of one gold bullion to the nearest tenth of a pound.
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Question 1070734: 41 percent of all college students were enrolled part time. If 7.7 million college students were enrolled last year, what was the total number of college students enrolled part-time? Round to the nearest million.
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Question 910502: Edgar Martinez's current batting average is .310. Notice that batting averages are given in decimal numerals. What percentage of the time does Edgar get a hit? What fraction of the time? If Edgar has had 300 chances to hit this far this season, how many hits does he have?
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Question 768952: I need help with a question and solving a fraction and writing it into a decimal place it says
three friends go to their favorite seafood restaurant for dinner they decide to order a crab cake appetizer when it arrives there is only two crab cakes
what fraction of a crab cake will each friend get to eat
write the fraction as decimal rounded into 2 decimal places
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Question 522334: Tickets for a school concert were priced at $3 for students and $14 for non-students. There were twice as many student tickets sold as non-student tickets for a total of $1,000.
How many student tickets were sold?
How many non-student tickets were sold?
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Question 680905: Karla's credit card bill is $420.90. Part of the bill is from the previous month's balance, part is in new charges, and part is from a late fee of $39. The previous balance is $172.40 less than the new charges. How much is the previous balance and how much is in new charges?
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Question 917192: Can you help me? I need to find all intercepts, and all asymptotes. Show work. For this (x^2+3x-10)/(x^2+8x+15)

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Question 917712: A truck's odometer reads 34,376.6 miles at the beginning of a trip and 34,636.2 miles at the end. If the trip takes 12.1 gallons of gas, what is the gas mileage in miles per gallon? (Round to the nearest tenth)
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Question 505809: They say the digit 5 is usually rounded up but can also be rounded down. My question is how would you round the numbers in the equation 9.5+4.7+3.2+7.5=x to the nearest whole number without overestimating or underestimating?
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Question 503683: how to multiply by powers of 10?
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Question 502540: N x 100=0.7
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Question 502032: Use only the digits 0,1 and 9 to write a decimal in billionth.
your decimal should be the least possible decimal that rounds up to the nearest millionth.
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Question 531078: tyler wants to buy a video game for 375.he can pay for the system in 12 months if he pays 75 now and 25 each month. how much will the number of monthly payments be affected if tyler pays 75 now and 30 each month.
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Question 501337: 10 to the zero power 4 to the -1/4 to the -3
and
(3 to the -1)to the -2

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Question 1125448: Q: On a journey from planet P to Venus a rocket is traveling at a constant speed during this journey the rocket Travels pass the moon in 4 days The distance from planet period to the moon is 4.8 x 10^5 km.
i) Fimd the distance travelled by rocket in 12 days. giv answer in standard form.
ii) Given that the distance between planet p and Venus is 4.8x10^7,find the time taken , in days for the journey. :)
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Question 487106: what is 7 to the power of 2 minus 2 to the power of negative 5
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Question 484346: Okay i need help with my home work can you help me please
5.82 - 1.76

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Question 484346: Okay i need help with my home work can you help me please
5.82 - 1.76

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Question 502014: Using only the digits 0,1and 9 to write a decimal in billionths. Use each digit at least once
Your decimal should be the least possible decimal that rounds up to the nearest millionth.
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Question 477940: How would you write 470.03072 in words?
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Question 477940: How would you write 470.03072 in words?
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Question 467631: Add the complex expression and simplify. Show all work please.
(9+9.4i)+(-8.6-4i)
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Question 467631: Add the complex expression and simplify. Show all work please.
(9+9.4i)+(-8.6-4i)
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Question 928353: Netta drew a picture on graph paper: 2 big square 4 rectangles and 3 little squares

She said,
In my picture, a big square represents 1. Since ten rectangles make a big square, a rectangle represents 0.1. Since 100 little squares make a big square, a little square represents 0.01. So this picture represents 2.43. Is Netta Correct? Explain.

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Question 1115900: 1. During the 2017 student�s orientation at Namibia Business School, it was reported that number of male students who attended the orientation was one thousand eight hundred and eighty less than eight times the number of female students.
1.1 From the statement above, formulate a mathematical equation expressing the number of male students in terms of female students, given that (f) represent the number of female students and (m) represent the number of male students.
1.2 Given that the total number of students who were attending this orientation was forty one thousand one hundred and thirty one, use the equation you formulated in 1.1 to determine the number of male students who attended the orientation.
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Question 456710: Write as decimal for -36/1000
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Question 450472: convert the following number into ordinary notation 5.2060 * 10third
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Question 854473: It took Lisa 2 hrs to read the first 100 pages of a book , if she reads the other 44 in an hour how many pages does she read per minute
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Question 447209: bob goes to the store,he finds out if he buys 3 or more items today he can save 20% on each item.
Suppose bob buys a CD (for $15.95) and a other CD ( for $3.45). the store adds a 6.5% sales tax on the discounted price. how much money does bob spend ??
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Question 483105: How do I turn a power of ten into a fraction?
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Question 432058: What is the nearest interger of the square root of 58?
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Question 461105: What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3?

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Question 461105: What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3?

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Question 447714: what is my name?
1. one of my digits is 3 times the other
2.the sum of my digits is 8
write the name on the card
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Question 447714: what is my name?
1. one of my digits is 3 times the other
2.the sum of my digits is 8
write the name on the card
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Question 869210: Complete:
a.) 125 thousandths = 1 tenth _________ thousandths? Is the answer 25 thousandths
b.) Ones Tenths Hundredths Thousandths? Is the answer 1.762
1 7 5 12
c.) Find the value of digit 8 in each decimal
.081=800th
.148= 8,000th
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Question 422606: how do you divide 2 by 7.006
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Question 422606: how do you divide 2 by 7.006
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Question 419698: .1% write this as a decimal... isn't it .01 or .001
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Question 622037: how can find the solution of 824.7*10^6*35.72*pi/60*60*180 as the power of 10?

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Question 411531: Besides counting up the decimal places, how else can you determine where the decimal will go in a product? For example, if you have 2.81 x 3.17 and you use 281 x 317 = 89077, how could you determine where the decimal should go?
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Question 408374: 0.8(x-2)+0.7(x+5)-0.6x
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Question 407077: round 54 2/7 to the nearest whole number.
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160