Questions on Algebra: Equations answered by real tutors!

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Question 139756: Which equation DOES NOT represent the problem? Sebastian's school bus averages 28mi/h, including stops. One day Sebastian forgot his backpack. His mom left home 15 minutes (0.25h) after Sebastian and traveled at an average speed of 42 mi/h. How long did it take Sebastian's mom to catch the bus?
A.) 42t = 28(t+0.25)
B.) 42t = 28t + 0.25
C.) 14t = 7
D.) 42t = 28t + 7
Please help ASAP
Click here to see answer by solver91311(16897)

Question 139758: Solve these equations!
1.) 5(x-3) = 2x+6
2.) -12 + 4n = 6(n-2)

THANKS!
Click here to see answer by solver91311(16897)

Question 139769: Simplify the expression:
x3- 8xy2+3y3/x+3y (it reads as x-cubed +8xy (squared) + 3y (cubed)) at the top of the equation.
I have tried long division and factoring, and none of those methods have worked. I have also tried to take out any common variables and to cancel, and that hasn't work either.
Thanks for your help.
Click here to see answer by solver91311(16897)

Question 139742: 1/4(5x - 1/2) - 1/3 < 2/3
Use set builder notatoin to describe the complete solution....
Thank you for any help.....
Click here to see answer by solver91311(16897)

Question 139818: How do I find out how much the 'a' is worth in "5a-2 = 3a-7" ??
Click here to see answer by ankor@dixie-net.com(15660)

Question 139827: I need help on this question...Page 151
3(x-2)+2=2(x-4)
Click here to see answer by checkley77(12569)

Question 139872: Find the slope of a line whose equation is y= -6x+3
Click here to see answer by jim_thompson5910(28598)

Question 139874: Estimate.
15&3/4 divided by 2&5/6
Click here to see answer by checkley77(12569)

Question 139873: Approximately, what is the area of a circular swimming pool that has a 36 foot diameter?
Click here to see answer by checkley77(12569)

Question 139881: For what value of x would a rectangle with a width of x+2 and a length of 2x+1 be a square? I am trying to solve a problem online at www.mathbits.com (algebra I caching). I don't understand at all what it wants me to do.
Click here to see answer by Earlsdon(6287)

Question 139871: The sum of three consecutive integers are arranged such that twice the middle integer is equal to 9 more than the largest. What is the sum of the three integers?
Click here to see answer by ankor@dixie-net.com(15660)

Question 139870: 7b over 4t+2 solve for t.
Click here to see answer by rapaljer(4667)

Question 139811: Which of the following equations describes (-4,4),(2,1)? Check all that apply.

A. y - 1 = - (x - 2)
B. y - 4 = -2(x + 4)

C. y - 4 = - (x + 4)
D. y - 1 = -2(x - 2)

E. y - 4 = - (x - 4)
F. y - 2 = - (x - 1)

Click here to see answer by rapaljer(4667)

Question 139789: If a/b divided 4/9 =9/16, What is a/b X 9/4

thank tou
Click here to see answer by vijay(6)

Question 139999: square root of x - 1 = x - 7
Click here to see answer by Earlsdon(6287)

Question 140072: I would be so grateful if someone could help me with this. 4=3(x-3)+4-2x
Thank you in advance.

Click here to see answer by jim_thompson5910(28598)

Question 140152: what is the difference between x-3 and 3-x?
Click here to see answer by scott8148(6628)

Question 140156: -27=8x-5x
and
-37=3x+11-7x
Click here to see answer by checkley77(12569)

Question 140170: what is the answer to, 24=17-2c
Click here to see answer by oscargut(891)

Question 140269: five times the first of three consecutive integers is fourteen more than three times the second. what is the third consecutive integer?
Click here to see answer by stanbon(57387)

Question 140278: Perform the indicated oeprations. Write fractional answers as mixed numbers or as proepr fractions reduced to lowest terms.
21 7/8 + 3 3/4 =
Click here to see answer by stanbon(57387)

Question 140282: joe is 5 years older than sally.in 15 yrs joe will be 3 times as old as sally is now.how old is sally now?
Click here to see answer by vijay(6)

Question 140359: x2+12x+0=0
Click here to see answer by checkley77(12569)

Question 140357: -39=7x+2x+6
Click here to see answer by checkley77(12569)

Question 140363: If f(x) = 3x-4 and g(x) = -x+5, find the equations for f)g and g)f.
Confusing.. I am blonde.. haha.. I do need some help though. Thankyou Shelly.
Click here to see answer by scott8148(6628)

Question 140425: I do not understand these.
Please help me.
A) It takes r cm of ribbon to make a bow. We have s meters of ribbon. How many bows can we make?
B) 20% of 3x+12=P. What is 120% of 5x+20?
Thankyou
Click here to see answer by ankor@dixie-net.com(15660)

Question 140483: how do you reduce a fraction? i can't do the steps.
(63/6)(48/7)
Click here to see answer by stanbon(57387)

Question 140647: Tutor can you help me with the following math problem?
Find the exact solutions to 5x^2+17x+6=0
Click here to see answer by checkley77(12569)

Question 140620: how do u find the perimeter of a triangle with the angles of 12cm ,18cm, 19cm and a height of 12cm
Click here to see answer by checkley77(12569)

Question 140646: Tutor I have the following problem, can you help me? Solve –2 < 2x + 1 ≤ 6
Thanks to you!
Click here to see answer by stanbon(57387)

Question 140738: i know how to do equations the easy way, for example, one of my questions is- k divided by negative 5 equals negative 5. so k=1 because 1 times negative 5 equals -5. but my teacher wants me to show my work the mathematical way, but we had a sub today who did not explain to me well at all the mathematical way. so can you help me? Thank so very much for your time.

Shannon
Click here to see answer by checkley77(12569)

Question 140807: Find the values of x and y that solve the following system of equations
-5x-7y=-1
2x+9y=-12

Click here to see answer by ptaylor(2048)

Question 140841: Collect the like terms...
5ab-7ab^2-3ab-12ab^2+10ab-9ab^2
Click here to see answer by rapaljer(4667)

Question 140806: Solve the following equation
9y+5 5y+5
----- - -------- = -3
7 2

Click here to see answer by checkley77(12569)

Question 140946: 1.) The mailroom is on the 6th floor. The mailman goes up 2 floors to deliver the mail. Next he goes up 7 floors. Then he goes down 11 floors. What floor is he on?
Thank yall so much
Click here to see answer by checkley77(12569)

Question 140986: 2x + 5 / 3 = 5x + 6
Can someone help me??
Click here to see answer by jim_thompson5910(28598)

Question 140948: Suppose a hot air balloon is 250 feet in the air. The balloon drops at 25 feet per minute. Write an interger to express the number of minutes it takes to land the balloon.

Thank yall so much!!!!!
Click here to see answer by edjones(7569)

Question 140947: Suppose you descend 20 feet from each of 4 rocks. Write an integer to express you total descent in feet.

Thank yall so much
Click here to see answer by smarty1994(10)

Question 140945: Can you help me find the absolute value of 22?

Thanks so much
Click here to see answer by vleith(2825)

Question 140944: May you please help me find the absolute value of -13?

Thanks for the help!!
Click here to see answer by vleith(2825)

Question 140943: Can you help me find the absolute value of -31?

Thanks for the help!!!
Click here to see answer by nabla(475)

Question 141091: Can a tutor help me please* My problem is to solve and write the answer in set notation: |3x-6|>3
Thank you, thank you, thank You!!!
Click here to see answer by stanbon(57387)

Question 141118: How do you know when an equation has an infinitely number of solutions or when an equation has no solution?
Click here to see answer by rapaljer(4667)

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, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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