Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 32087: how do i solve 7x-8a=3x+24a? please help.
Click here to see answer by mukhopadhyay(490)

Question 32100: Hi- my class is working on Equestions with Variables/ Decimals/ Fractions. I honestly do not understand any of it. The problem I am working on is : 2a + 4.2 = 3a - 1.6 . I have tried to icolate the variable , but I still am stuck. I also do understand the decimals.
Please help me.
Sincerely, Sebastian Mosier
Click here to see answer by checkley71(8403)

Question 32090: the area of a square is equal to 64 ,so in the formula s=32?
Click here to see answer by checkley71(8403)

Question 32089: in the equation Csquared-4=0, c= to? i need some help what do i do?
Click here to see answer by Cintchr(481)

Question 32127: 2^(x+3)=5^x
Thank you,
Alexus
Click here to see answer by stanbon(75887)

Question 32088: is this expression an example of a root or identity? b/c=b/c
Click here to see answer by venugopalramana(3286)

Question 32171: One evening, a husband and wife are working in their garden. While watering the grass, the wife holds the hose horizontally and the water flows from the end of the hose.She twists the nozzle of the hose to partially close it and suddenly the water shots father from the end of the hose. This seems odd to her husband, who wondrs, "why does the stream of water travel farther, since it appears that less water is flowing from the end of the hose?"
Your challenge is to give a scientific explaination for this seemingly unnatural phenomenon. ????
Click here to see answer by venugopalramana(3286)

Question 32169: The latent heat of fusion for ice is 79.8 cal/gram. how much ice can we melt with 1000 calories of heat? (Q=mlf)
Click here to see answer by venugopalramana(3286)

Question 32086: what would be me first step to solve this formula 3x6squared-2/6?
Click here to see answer by stanbon(75887)

Question 32108: Is the following a Diophantine equation?
5x + 6y + 27
Click here to see answer by Earlsdon(6294)

Question 31951: how would i write out the expression a=3b squared +2?
Click here to see answer by stanbon(75887)

Question 32248: Write an equation in slope-intercept form for each line described:
containing (2,-9) slope -1
containing (3,-4) slope 0
containing (3,1) and (6,-3)
containing (-2,7) and (-2,3) Please help!!!
Click here to see answer by venugopalramana(3286)

Question 32285:
9r=3r+6
5s-6=2s
Click here to see answer by mbarugel(146)

Question 32304: There are x teams in a league and each team plays each other team twice, then the total number of games, N, played for the season is: N=x^2-x. If the league played 182 games, how many teams are there?
Click here to see answer by checkley71(8403)

Question 32340: i=sqrt(p/r) if p=500 ,r=25. would that make the answer 20 ?
Click here to see answer by checkley71(8403)

Question 32338: in the formula 3x6squared-2/6 ,do i find the value of 6squared first?
Click here to see answer by stanbon(75887)

Question 32331: in the formula c=sqrt of(2a squared+b squared). a=4 and b=5.my answer was 7.550? is this correct.
Click here to see answer by mukhopadhyay(490)

Question 32501: i am just starting algebra and i kind of want to get ahead of the game i was wondering if you could just show me how to solve it like the work not really the answer. The problem is y=x(squared)+2x+4 and their asking you to find a, b, and c.
Click here to see answer by stanbon(75887)

Question 32518: 15j+10j+8=11
Click here to see answer by ikdeep(226)

Question 32544: (4S - 8) square = 81
Click here to see answer by mukhopadhyay(490)

Question 32542: z^4 -11z^2 +30=0
Click here to see answer by mukhopadhyay(490)

Question 32541: x^2=12 + 5x
Click here to see answer by mukhopadhyay(490)

Question 32540: x^2 -6x+25=0
Click here to see answer by mukhopadhyay(490)

Question 32483: Solve for y
4/9y -5 = 3
3/7y -4= 2

Click here to see answer by mukhopadhyay(490)

Question 32334: which formula can i use to find side w,in the formula p=2l+2w?
Click here to see answer by mukhopadhyay(490)

Question 32543: sqrt x =12-x
Click here to see answer by stanbon(75887)

Question 32600: 4a+3=11
Click here to see answer by mukhopadhyay(490)

Question 32600: 4a+3=11
Click here to see answer by Jeremiah Beard(1)

Question 32617: (7-4i)^2
Click here to see answer by venugopalramana(3286)

Question 32615: (9-2i)(6+5i)
Click here to see answer by venugopalramana(3286)

Question 32658: Samantha is 8 and two-third older than John. The sum of their ages is 23 years. How old is John?
Click here to see answer by mukhopadhyay(490)

Question 32736: Solve: 4/m^2-7=1
cant figure this one out.. math is hard, but fun!
Click here to see answer by mukhopadhyay(490)

Question 32785: Is �5 a solution to the equation 9-8x=49
Click here to see answer by stanbon(75887)

Question 32824: Complete the ordered pairs so that each is a solution for the given equation:
(show your work)

3x + 4y = 12 (0, ), ( ,3/4), ( , 0), (8/3, )
Click here to see answer by stanbon(75887)

Question 32825: Science and medicine. Celsius temperature readings can be converted to Fahrenheit readings using the formula F=9/5C + 32. What is the Fahrenheit temperature that corresponds to each of the following Celsius temperatures:
-10, 0, 15, and 100?
Click here to see answer by sarah_adam(201)

Question 32827: Business and finance. When x number of units are sold, the price of each unit (in dollars) is given by p = -x/2 + 75. Find the unit price when the following quantities are sold: 2, 7, 9, 11.
Click here to see answer by sarah_adam(201)

Question 32842: I am struggling with this word problem:
Business and finance. The revenue for a sandwich shop is directly proportional to its advertising budget. When the owner spent $2000 a month on advertising, the revenue was $120,000. If the revenue is now $180,000, how much is the owner spending on advertising?
Click here to see answer by sarah_adam(201)

Question 32845: HELP!! I am struggling in solving this equation. I am never sure on the negative numbers on how to figure.
Solve the following equation by first solving for y: 2x - 3y = 12
Click here to see answer by oo70mar(1)

Question 32859: aBusiness and finance. The cost of producing a number of items x is given by C=mx+b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item).
a) If the fixed cost is $40 and the variable cost is $10, write the cost equation.
b) Graph the cost equation.
c) The revenue generated from the sale of items is given by R=50x. Graph the revenue equation on the same set of axes as the cost equation.
d) How many items must be produced for the revenue to equal the cost (the break-even point)?

Click here to see answer by stanbon(75887)

Question 32848: 3X+4=10
Click here to see answer by benni1013(206)

Question 32846: Can anyone help me solve this equation? I always struggle when fractions are involved.
I need to find what the x and y coordinates are.
y = 3/4x + 2
Click here to see answer by benni1013(206)

Question 32847: 3x+4=10
Click here to see answer by mukhopadhyay(490)

Question 32840: Solve the following:
2x + 3y = 6
Click here to see answer by mukhopadhyay(490)

Question 32839: Solve the following:
y = 3/4x + 2
Click here to see answer by mukhopadhyay(490)

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