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

Tutors Answer Your Questions about decimal-numbers (FREE)

Question 300226: round the number 3,3867 to the nearest tenth place
Click here to see answer by Fombitz(13828)

Question 300227: place the correct symbol, betweenthe two numbers: -20 _______ -19
Click here to see answer by Fombitz(13828)

Question 300731: Ms. Price has received a 10% raise in salary in each of the last 2 years. If her annual salary this year is $100,000
What was her salry 2 years ago, rounded to the nearest penny?
I have the answer from the book I bough, but I need to know how to follow step by step. I try and can only get exact amounts by doing it forward. I need to know, how to do it backwards.
This is what I did: 82,644.63 x .1 = 8264.463
+ 8264.463

2ns year: 90900.9093 x .1 = 9090.9093
+ 9090.9093

100,000
Elizabeth R.
Click here to see answer by richwmiller(9143)

Question 301374: Today you buy 10 plain donuts and 5
chocolate glazed donuts for $3.70. Last
week you went to the same store and
bought 5 plain donuts and 10 chocolate
glazed donuts for $4.10. How much are
each kind of donut?
Click here to see answer by JBarnum(2044)

Question 301375: Bill has a collection of 65 nickels and
dimes. Their total worth is $5.50. Find how
many nickels and dimes Bill has.
Click here to see answer by JBarnum(2044)

Question 301674: How do you round 0.6 to the nearest one-eighth

Click here to see answer by richwmiller(9143)

Question 301658: How do you multiply 6 X 1/2.51?
Click here to see answer by Alan3354(30993)

Question 301834: The difference between two numbers is 3. If the sum of twice the larger and the smaller is 48, find the two numbers. this is how I tried to solve it.
2n + n - 3 =48 n = 15 Thanks in advance for your help.
Click here to see answer by mananth(12270)

Question 302215: what is 9.8994949 rounded to 1 decimal place
Click here to see answer by Alan3354(30993)

Question 302218: what is 7.6157731 to 1 decimal place
Click here to see answer by london maths tutor(243)

Question 302704: When doing this problem do i just add 3 to 3 or do i multiply 3 by 3 ??
10^3 x 10^3 = 100^?
Click here to see answer by jim_thompson5910(28598)

Question 302748: Choose the correct answer: True or False?
The decimal expansion of 3(3 is the index) will be either terminating or repeating.
Thank you

Click here to see answer by checkley77(12569)

Question 303612: Hi can you please help me solve this. Book Intermediate Algebra by Mark Dugopolski.
(the 2's on the outside are squared)
Evaluate expression.
3[(2 - 3)2 + (6 - 4)2]
Thank you
Click here to see answer by stanbon(57424)

Question 303607: Hello,
If someone could please help me solve for these I would greatly appreciate it. Book Intermediate Algebra by Mark Dugopolski.
Perform the indicated operations.
1.( - 8)( - 6) {what I think for this one: -48?} Is this correct?
2. - 9/10 * 4/3
Thank you very much
Click here to see answer by stanbon(57424)

Question 303676: Hello,
If someone could help me solve for this problem from, the Book: Intermediate Algebra by Mark Dugopolski, I would greatly appreciate it.
Evaluate each expression using a = - 1, b = 2, and c = - 3
(a - c)(a + c)
{I was thinking: -1 - -3 * -1 + -3 (4 * -4 = Answer: -16) Is this correct?}
Please let me know
Thank you

Click here to see answer by Stitch(352)

Question 303706: Hi,
Could someone please tell me if this would be the right answer?
Perform the indicated operations.
-19 – 13
Answer: -32 or 32
Thank you very much
Click here to see answer by Alan3354(30993)

Question 304343: Which decimal is greater 0.4 or 0.24?

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Question 304343: Which decimal is greater 0.4 or 0.24?

Click here to see answer by checkley77(12569)

Question 304587: What number will be in the 72nd position of the decimal form of 5/11?
Click here to see answer by CharlesG2(828)

Question 306192: What is greater, or ?
Click here to see answer by themathtutor2009(81)

Question 306149: whats 531 round to the nearest ten
Click here to see answer by themathtutor2009(81)

Question 307106: The product of 10% and a number

Click here to see answer by rapaljer(4667)

Question 308503: what is the number in decimal form of 8.85 times ten to the first power
Click here to see answer by user_dude2008(1861)

Question 308830: You have a pie cut into 7 pieces, you eat half of a piece. How much of the whole pie did you eat
Click here to see answer by user_dude2008(1861)

Question 308828: 4.008 rounded to nearest tenth
Click here to see answer by user_dude2008(1861)

Question 310011: Can anyone show me how to write 38.2% as a decimal? Sure could use the help.
Click here to see answer by Alan3354(30993)

Question 310533: How do you write 0.00006184 into words
Click here to see answer by stanbon(57424)

Question 310533: How do you write 0.00006184 into words
Click here to see answer by Alan3354(30993)

Question 312765: Perform the indicated operation.

Click here to see answer by Fombitz(13828)

Question 312765: Perform the indicated operation.

Click here to see answer by Edwin McCravy(8924)

Question 313510: I've asked like 4 questions and have not received one response. Do me a favor if you do not want to help just let me know, please. I will try one last time.
I need to turn 21.418 into a mixed fraction rounding to the nearest 1/5. Thank you
Click here to see answer by Alan3354(30993)

Question 313576: I need to find the quotient of 4 1/2 by 7/8.
Click here to see answer by Fombitz(13828)

Question 313674: Given the sequence 7, 14, 28, 56, ..., which expression shown would give the tenth term?
Click here to see answer by checkley77(12569)

Question 314230: how do you turn 10^-2 into a decimal?
Click here to see answer by Fombitz(13828)

Question 314433: write 428% as a decimal
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Question 316517: A pair of shoes on sale is labelled 20% off the marked price. If the shoes were priced at 45 dollars, calculate the sale price.
By selling jackets at 260 dollars, a store makes a profit of 30%. What was the cost for each jacket.
During a sale the selling price of the jackets is reduced by 10%. What was the percentage profit on the jackets during the sale?
Hope somebody can help, if you can, thank you for your generosity.
Click here to see answer by rfer(12678)

Question 317025: what is the fraction form of 1.38?
Click here to see answer by JBarnum(2044)

Question 317025: what is the fraction form of 1.38?
Click here to see answer by stanbon(57424)

Question 318947: How do you make 9.692307692 into a mixed fraction?
Click here to see answer by Fombitz(13828)

Question 318944: How do you do this problem in the powers-of-ten notation?
(0.002)(0.00000005)
___________________
0.000004
Click here to see answer by Fombitz(13828)

Question 319095: 0.4 is 19% 0f what number? Round to the nearest tenth.
Click here to see answer by Fombitz(13828)

Question 319324: seven millionths as decimal numerals
Click here to see answer by stanbon(57424)

Question 321050: change 32% to a deccimal and a simplified paction
Click here to see answer by rfer(12678)

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