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

Tutors Answer Your Questions about decimal-numbers (FREE)

Question 119573: Can you explain how 0.327 is less than 0.37?
Click here to see answer by ankor@dixie-net.com(15624)

Question 119810: One pound of grapes cost $1.29. To the nearest cent, how much will 4.2 pounds of grapes cost?
Click here to see answer by checkley71(8403)

Question 119804: Round each number to the nearest tenth

4141.07 0.1257 7.61
Click here to see answer by checkley71(8403)

Question 119803: Use front-end estimation to esitmate the sum.

7.821+9.91
Click here to see answer by checkley71(8403)

Question 119802: Use rounding to estimate the product.
8.95 x 2.05 =
Click here to see answer by checkley71(8403)

Question 119800: Use compatible numbers to estimate.
1.) 48.6/6.9 =
2.) 29.8 x 7.1
Click here to see answer by checkley71(8403)

Question 120169: Find the Integers that fit the following conditions:
They are between 44 and 53
The sums of their digits are prime
They have more than three factors
Click here to see answer by solver91311(16868)

Question 120267: The question says round to the nearest tenth.
Round 25.13
Round 50.26
Round 113.04
Round all of those to the nearest tenth. Can some one show how to do that problem?
Click here to see answer by tutor_paul(490)

Question 120381: 1.) 75/0.006
2.) square root of 0.0016
On these i need to change them to decimals and i can't use a caculator, need some help, thank you in advance for help.
1.) 1/12
2.) 3/8
Click here to see answer by stanbon(57223)

Question 121081: How do I find out what is a 4% increase of 57000? Can you show me how you set the equation up?
Click here to see answer by Fombitz(13828)

Question 121923: how do you calculate high powers of "i" the imaginary number?
Click here to see answer by stanbon(57223)

Question 121923: how do you calculate high powers of "i" the imaginary number?
Click here to see answer by solver91311(16868)

Question 122827: 120% of what number is 180?
Click here to see answer by ankor@dixie-net.com(15624)

Question 122830: 72 is 12% of what number
Click here to see answer by checkley71(8403)

Question 122826: write the decimal equivalent of 8 over 11 useing bar notation?
Click here to see answer by checkley71(8403)

Question 123261: Please help? I think the answer to my problem is 5.
(2.5)(20)
My choices are:
5
-5
50
-50
Click here to see answer by stanbon(57223)

Question 123324: I am having a problem multiplying a negative decimal number and a positive number, please help me? Thank you.
(-2.5)(20)
Click here to see answer by sajankumar(7)

Question 123358: .407= 4.07*10^1
is this correct? my mom confused me when i asked for help.
Click here to see answer by stanbon(57223)

Question 123540: 9[1000]+4[10]+7[1/1000]
Click here to see answer by stanbon(57223)

Question 123540: 9[1000]+4[10]+7[1/1000]
Click here to see answer by rajagopalan(158)

Question 123540: 9[1000]+4[10]+7[1/1000]
Click here to see answer by chitra(359)

Question 123546: 34,000
Click here to see answer by elima(1433)

Question 123877: directions: write a rational number in simplest form for each decimal expansion. my decimal is 0.15 with a line over 15 to make it repeating. my fraction is 25/165. am i correct?
Click here to see answer by kev82(148)

Question 124702: write 1/300 using sientifc notation.
i feel stupid for this but oh well.
Click here to see answer by jim_thompson5910(28476)

Question 126375: what would be the decimal of 105%
%
Click here to see answer by jim_thompson5910(28476)

Question 75720: I have been working on these problems for ever. and i can't solve them. and i need to show my work. :( can you help me?
1.7712/4.8
Click here to see answer by apachemexican1(64)

Question 119811: Nolan finishes a 3.5 mile race in 21 minutes. Nolan waited for ben at the finish line for 5 minutes. Laura had finished the race 7 minutes ahead of Ben. How long did it take Laura to run the race?
Click here to see answer by awang1996(50)

Question 113843: Find each percent of change. Round to the nearest tenth if necessary. State whether the percent of change is an increase or s decrease.
1. Original:8 points
New: 10 points I don't understnd the percent of change. I think for the this first problem it's increased.
Click here to see answer by awang1996(50)

Question 96584: Isabella claims that the solution to 0.1x+10.5=10.55 is between 0 and 1. Is she correct?
a) Isabella is correct, because she knows that 0.1x must equal 0.50. Therefore, she must multiply 0.1 by a value between 0 and 1.
b) Isabella is correct, because she knows that 0.1x must equal 0.05. Therefore, she must multiply 0.1 by a value between 0 and 1.
c) Isabella is incorrect, because 01 multiplied by 0 equals 0 and 0.1 multiplied by 1 equals 0.1
d) Isabella is incorrect because the answer must be greater than 1 for the result of the equation to equal 10.55
Please help me... thank you
Click here to see answer by awang1996(50)

Question 123875: directions: express each fraction as a decimal in simplest form. my fraction is 4/5 and i expressed that in simplest form as a decimal 0.8. am i correct?
Click here to see answer by apachemexican1(64)

Question 109560: divide 12,831 / 18 show calculations
Click here to see answer by apachemexican1(64)

Question 129155: 1.31 x (o.oo6)
Click here to see answer by checkley71(8403)

Question 100483: arrange the following from smallest to largest:
2.0515, 2.0513, 2.05, 25/10, 2.059, 2.052, 251/100, 2.051
Click here to see answer by apachemexican1(64)

Question 130591: 4 is what percent of 50?
Click here to see answer by checkley71(8403)

Question 130591: 4 is what percent of 50?
Click here to see answer by cngriffith(27)

Question 132501:
1. Write two different algebraic expressions for the word phrase “6 less than the difference of x and 9.”

Click here to see answer by checkley71(8403)

Question 132574: square root of 150 to the nearest tenth
Click here to see answer by solver91311(16868)

Question 132580: what's square root of 64 to the nearest tenth
square root of 30 to the nearest tenth
square root of 58 to the nearest tenth.
Click here to see answer by tutorcecilia(2152)

Question 132582: what's the square root of 900 round to the nearest tenth. please round it
2. square root of 58 round to the nearest tenth. please round it
3. square root of 64 round to the nearest tenth. please round it
Click here to see answer by checkley71(8403)

Question 133588: what is the square root of 58 to the nearest houndreds
Click here to see answer by checkley71(8403)

Question 134376: In the number 7^1000, what is the digit in the units place?
Click here to see answer by oscargut(891)

Question 134387: Can you tell me how to convert $1,137,000,000,000 into scientific notation?
Thank you very much for your help!
Click here to see answer by MathLover1(6614)

Question 135027: Tutor I am trying to learn how to do scientific notations: Could you help me please?
(4.2*10^-2) (3.5*10^8) would this be 4,200,000,000 times 3,500,000, how would I compute this and write it in scientific notation?

also 4.2*10^-6/7*10^8 4.2.10^-6/7.10^8 I don't know how to do this one or where do I start?
Karen
thank you for your help!!!
Click here to see answer by vleith(2825)

Question 135723: If a and b are real numbers and a2 = b2, does a = b? can this be explained to me?

Click here to see answer by ptaylor(2048)

Question 136491: What is the square root of 165 rounded to the nearest tenth?
Click here to see answer by checkley77(12569)

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