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

Tutors Answer Your Questions about decimal-numbers (FREE)

Question 991888: find the indicated quotient to the nearest hundredth 4.5 divided by 69.81
Click here to see answer by Rwilson55(9)

Question 1004726: The length of a rectangle is 10 less than 3 times its width . The perimeter of the rectangle is at most 180 inches. Find the maximum length of the rectangle.
Click here to see answer by addingup(3677)

Question 1004790: What is the units digits of 13^1972?
Click here to see answer by fractalier(6550)

Question 1007387: John does 10 pushups on the first day of a 30-day month, and then increases the number of pushups by 3 pushups a day. How many pushups has he done in total by the end of the month?
Click here to see answer by tiffany222(56)

Question 1009011: What is 21st digit of the decimal expansion 11/13?
Click here to see answer by fractalier(6550)

Question 1008851: Tanya and her 7 teammates are raising money for field hockey uniforms. The girls have raised an average of $37 each so far. They need to raise a total of$395. To the nearest ten dollar, how much money does each girl needs to meet that goal, if each raises the same amount?
Click here to see answer by josmiceli(19441)

Question 1000577: A normal carpenter's ruler marked off in sixteenths. What would be the values at each of the marks in decimal form?
Click here to see answer by Zaraisty(1)

Question 1010598: Simplify this expression:
(3a^2)^3
Please show full working out
Click here to see answer by MathLover1(20849)

Question 1010652: Convert the following binary numbers to decimal and show your calculations: 10101100011 and 10011111
Convert the following decimal numbers to binary and show your calculations: 7625 and 872
Click here to see answer by Alan3354(69443)

Question 1010682: The table shows the ingredients used in a medicine. If all the decimals were rounded to the nearest whole percent, would this table be helpful in comparing the amount of each ingredient? Explain.
Ingredient Percent
Substance A 19.6%
Substance B 19.9%
Substance C 19.5%
Substance D 14.5%

A. Yes; substance B would still be the largest part of the medicine.
B. No; three of the percentages would round to 19%.
C. No; three of the percentages would round to 20%.
D. No; two of the percentages would round to 20%.
Click here to see answer by fractalier(6550)

Question 1011842: 2+4+6+.....2n=n(n+1)
Click here to see answer by ikleyn(52778)

Question 1014250: I am a four digit number, i am less than 5000
Click here to see answer by Theo(13342)

Question 1015499: A rope is wrapped tightly around a wheel with a radius of 2 feet. If the radius of the wheel is increased by 2 feet to a radius of 4 feet, by how much must the rope be lengthened to fit around the whee?
Click here to see answer by Boreal(15235)

Question 1015716: Which number is greater -7 or 6?
Click here to see answer by fractalier(6550)

Question 1017740: What would you round 14.0625 to?
Click here to see answer by Alan3354(69443)

Question 1018549: Round 8.149 to the nearest Tenth
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Question 1018669: please help to solve round 9.95 to the nearest whole number
Click here to see answer by josgarithmetic(39617)

Question 1019347: what is the place value of 5 in (a)1364.512 and also in (b)1573.589?
Click here to see answer by Screamgirl(4)

Question 1020634: Write -0.0000343 as powers of its prime factors.
What is an easier way to do this? Thanks.
Click here to see answer by josgarithmetic(39617)

Question 1020761: can you help me with this question im not good at word problems.
Justin wants to use 188 ft of fencing to fence off the greatest possible rectangular area for a garden. What dimensions should he use? What will be the area of the garden?
A. 44ft X 50ft; 2200 ft^2
B. 46ft x 48ft ; 2208 ft^2
C. 47ft x 47ft; 2209 ft^2
D. 45ft x 49ft; 2205 ft^2
Click here to see answer by ewatrrr(24785)

Question 1021529: Is 0.70 greater than 0.7 or they equal?
Click here to see answer by FrankM(1040)

Question 1021529: Is 0.70 greater than 0.7 or they equal?
Click here to see answer by josmiceli(19441)

Question 1021998: how do I, write each decimal as a fraction or a mixed number samples 7.24 , 3.50 2.01, 6.93. 0.27 2.4
Click here to see answer by Fombitz(32388)

Question 1024643: 150000 to nearest thousand

Click here to see answer by FrankM(1040)

Question 1025130: What's 12.569 as a mixed number
Click here to see answer by Alan3354(69443)

Question 1025265: Let be :
p=1*3*5*...*99/2*4*6*...*100
Find the first digit after the decimal point.
Click here to see answer by robertb(5830)

Question 1025607: How much is 2+(-11)
Click here to see answer by ichudov(507)

Question 1025986: equivalent decimal of 5/10 and steps explaining it please
Click here to see answer by rothauserc(4718)

Question 1025986: equivalent decimal of 5/10 and steps explaining it please
Click here to see answer by Edwin McCravy(20054)

Question 1026301: Which has the greatest value 3.75,3 3/4,3 7/8
Click here to see answer by Fombitz(32388)

Question 1026303: Solve for x. 50/25 as 120/x x=
Click here to see answer by ikleyn(52778)

Question 1026302: Solve for x 1/100 as x/350=�
Click here to see answer by ikleyn(52778)

Question 987824: standard form or integer 8.85 x 10 to the 7th power
Click here to see answer by EdenWolf(517)

Question 1033138: x-4y=2
-2x-5y=9
solve equations by substitution
Click here to see answer by ikleyn(52778)

Question 1033849: change from decimal to a fraction:
25.6
.256
2.56
Click here to see answer by fractalier(6550)

Question 1034970: Q-1) 11^9 mod 9

Click here to see answer by Alan3354(69443)

Question 1035335: Findax/min point for the following function:
f (x,y) = -x^2-y^2 + 6x + 8y - 21
Click here to see answer by stanbon(75887)

Question 1035334: Find the local max/min point for the function:
f (x) = x + 16/x
Click here to see answer by stanbon(75887)

Question 1035337: Find the max/min point for the following function:
f (x,y) = x^3 + y^3 + 6xy
Click here to see answer by robertb(5830)

Question 1035333: Find max/min when x belongs to the interval (0,infinite sign)
For function:
f (x) = (lnx)^2 - 3lnx
Click here to see answer by robertb(5830)

Question 1035331: Find max/min using second-derivative test
For: f (x) = xe^-0.2x
Click here to see answer by robertb(5830)

Question 1036711: pls i want the inverse of g(x) 3x-2
Click here to see answer by Cromlix(4381)

Question 1041221: Convert 3/8 into percent.
Click here to see answer by rfer(16322)

Question 1041222: 36% of what number is 18?
Click here to see answer by rfer(16322)

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