Questions on Algebra: Unit Conversion answered by real tutors!

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Question 925174: There are certain steps I must follow to do this equation, This is an assignment. I have never taken algebra before but have gotten comments that this is different then most are used too.
The equation is: x2 - 2x -13 =0
the 1st step is to move the constant to the right and I did that.x2-2x=13
2nd step:multiply each term in the equation by 4times the coefficient of the x2 term. and I did that: 4x2 -8x = 52
3rd step square the coefficient of the original x term and add it to both sides of the equation, and I did that too: 4x2 -8x +4 = 52 + 4
4th step and the one I am stuck on is take the square root of both sides. I am not sure if I get a sum from the terms 4x2 -8 +4 and find a square root, I am just unsure of how to find the square root of these numbers
Click here to see answer by josgarithmetic(39617)

Question 925861: How do you convert 44 square feet per minute to square yards per seconds?
Click here to see answer by lwsshak3(11628)

Question 647404: Gasoline sells for 1.2 euros/liter in Bonn. What is the price in units of U.S. per gallon? (1 gallon = 3.785 liters), ($1 USD = 1.256 EU).

Click here to see answer by tamugrad07(1)

Question 929220: Here's the question:
Solve the formula for converting celsius to Fahrenheit for C. Solve the formula for converting fahrenheit to Celsius for F. What do you notice?
Click here to see answer by TimothyLamb(4379)

Question 938644: Which is greater, 700,000L or 70kl?

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Question 938711: A fence that surrounds a rectangular yard has a perimeter of 26 meters. The length is 2 less than 4 times the width. What are the dimensions of the fence?
Click here to see answer by ewatrrr(24785)

Question 939327: How do i convert 1.77 m/s^2 to km/h?
Click here to see answer by Alan3354(69443)

Question 940875: Michael Johnson ran 200 meters in 19.32 seconds. How many miles per hour is this?
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Question 940881: Find the rate and the unit rate of a car that traveled 200 miles in 10 hours
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Question 942103: how many milliliters of water must be added to 100ml of 75% sodium bicarbonate solution to produce 65% solution?
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Question 942623: There are 600 seats in the auditorium. This is 112 less than the number of seats in gymnasium. How many seats are in the gymnasium?
I missed a week at school and I was never thought this can you help me also I'm 12 so try to explain it to me simply here is some work 600-g =112 600-600+g=600 -25. G= w
Click here to see answer by ankor@dixie-net.com(22740)

Question 943538: Hello Tutor,
I am struggling in my Chemistry 101 class with conversions. Do you think you may be able to help? The problem is 'The density of sulfuric acid is 1.84 g/mL. What volume of this acid will weigh 197 g?'
Thank you,
Devin
Click here to see answer by macston(5194)

Question 943599:
use two unit multipliers to convert squared 2meters to square centimeters
Click here to see answer by Alan3354(69443)

Question 944041: perform the metric-metric conversion and round to appropriate number of significant digits:
(1.) 0.08g = ________mg
(2.) 78,000 sq m = ____________ha
(3.) 42 cm/sec = _____________m/min
Click here to see answer by Alan3354(69443)

Question 945286: Use six unit multipliers to covert 45 cubic feet to cubic centimeters?
This is how I solved it:
45ft x 1ft/1in times 1ft/12in times 1in/2.54cm times 1in/2.54cm
45cft (12)2 times 2.54
Don't know if I've done this right. This is Algebra 1
Click here to see answer by josgarithmetic(39617)

Question 946588: could someone please explain this to me?use 9 unit multipliers to convert 11,111 cubic miles to cubic centimeters.
Click here to see answer by Fombitz(32388)

Question 946677: (1.07g)/(2.68g/ml)
Click here to see answer by stanbon(75887)

Question 946778: The altitude of Mt Fuji is 3,776 meters.
what is Mt Fuji height in kilometers?
Click here to see answer by etutorworld(19)

Question 946778: The altitude of Mt Fuji is 3,776 meters.
what is Mt Fuji height in kilometers?
Click here to see answer by petercaballero(2)

Question 950724: express as partial fractions -
3x^3-x^2-13x-13 / x^2-x-6
Click here to see answer by Fombitz(32388)

Question 950906: How do you covert 100 miles per hour to miles per minute ?
Click here to see answer by josgarithmetic(39617)

Question 951179: A case of soda contains 24 cans. If a case of soda costs $15.97, how much does each can cost?
Please show the set up.
Click here to see answer by rfer(16322)

Question 951882: The area of a rectangular piece of metal is 30 square centimeters. The piece is 4 centimeters wide. How long is it?
Click here to see answer by Alan3354(69443)

Question 952481: 45mi/h=____Ft/s Convert each unit rate using dimensional analysis

Click here to see answer by stanbon(75887)

Question 952485: 2.5qt/min=__gal/h
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Question 952404: 190g white flour to cups
if 1 cup flour is 125g
Click here to see answer by macston(5194)

Question 955592: The area of a rectangle 18 X -12 in.� write an expression that represents the length of the rectangle
Click here to see answer by josgarithmetic(39617)

Question 956117: If there are 2.54 cm per inch convert 271 feet to centimeters
Click here to see answer by Alan3354(69443)

Question 956133: If there are 5280 ft per mile convert 13,600 feet to miles
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Question 956134: A company profits in the year 2000 were 1.5 million dollars. The same company had 10 million dollars in profits in 2013. What is the percent increase in profits from the year 2000 to the year 2013?
Click here to see answer by stanbon(75887)

Question 956848: Accelaration of an object due to gravity is 32feet per second squared,
what is accelaration due to gravity in inches per second squared.

Click here to see answer by macston(5194)

Question 959154: a) The perimeter of a rectangular field is 120 meters. Its length is 10 meters more than its width. Find the length and width of this rectangle?
b) Going for a long trip, Joshua drove for 3 hours and had lunch. After lunch he drove for 4 more hours at a speed that is 10 km/h more than before lunch. The total trip was 600 km.
i. What was his speed before lunch?
ii. What distance did he drive after lunch?

can i have the solution as well. Thanks

Click here to see answer by rothauserc(4718)

Question 963022: Use unit multiplier to convert $15 per hour to cents per minute.
Click here to see answer by Alan3354(69443)

Question 965124: Not sure if "topic": selection is correct.
how do you figure out the smallest and largest possible perimeters of an area:
i.e. (1) A picture frame has an area of 48 sq inches. What is the largest possible perimeter of the pic frame? (2) A backyard has an area of 64 sq feet. What is the smallest possible perimeter of the backyard?

Click here to see answer by Alan3354(69443)

Question 971906: Please, help me convert 30cm to m
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Question 972300: How do you convert something with a radius of 10 feet that makes 6 revolutions/minute to inches per minute? Thank you
Click here to see answer by Edwin McCravy(20055)

Question 972327: A boy is t years old, his father is ten years older than twice his son's age. How old is the father?
Click here to see answer by stanbon(75887)

Question 974649: F(x)= 5X+15
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Question 978227: 8. Using units (not numbers), write an algebraic equation in which you m ultiply grams by a factor composed of other units to give a result in kilograms. (HINT: grams x ????
= kilograms)

Click here to see answer by josmiceli(19441)

Question 978235: 11. Write an algebraic expression in w hich you multiply gallons by a factor composed of other units to give a result in quarts.
Click here to see answer by jim_thompson5910(35256)

Question 978236: 12. Using numbers with units, write an algebraic equation which converts 3.2 gallons to quarts. Carry out the calculation.
Click here to see answer by josgarithmetic(39617)

Question 978507: In a recent year, 6.5x10^8 metric tons of wheat were produced in the world. One metric ton is equivalent to 1000 kilograms. A grain of wheat weighs about .000008 kilograms. Find the number of grains of wheat that were produced in the world.

Sorry, i didn't know what category to place it in! But i think it has something to do with scientific notation. Thanks!! :D
Click here to see answer by jim_thompson5910(35256)

Question 978738: 85 inches to feet to yard to meter
Click here to see answer by rothauserc(4718)

Question 978738: 85 inches to feet to yard to meter
Click here to see answer by Theo(13342)

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