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Question 210517: please help me !! I am trying to help my son with an algebra word problem and I do not remember how to do this type of algebraic equation. I do remember: Time = Distance divided by Rate . We have filled in the variables but that is as far as we got. Thanks, here is the question.....
Fastball thrown by.....travels at a speed of 145km/hr toward the batter who is 18.3 meters away. How long does it take the baseball to travel this distance.
Distance divided by Rate = Time
18.3m 145km/hr = t
Click here to see answer by checkley77(12844)

Question 210757: Decide whether the pair of lines are parallel,perpendicular, or neither
3x+5y=8
5x-3y=5
Click here to see answer by tutor_paul(519)

Question 210758: find the domain of the function
g(x)=2/7-3x
Click here to see answer by stanbon(75887)

Question 210760: find the slope
(2,10) and (7,-15)
Click here to see answer by Earlsdon(6294)

Question 210755: graph the equation using the slope and y-intercept
y=9/5x=6
Click here to see answer by Alan3354(69443)

Question 210759: graph on a number line, where x is a real number
-4
Click here to see answer by nyc_function(2741)

Question 137979: How do you solve this system?
x + 2y-3z = -8
2x + y + 3z= 17
x - 3y + 3z = 11
Click here to see answer by AndrewRyan(3)

Question 210944: solve for indicated letter
b=3c,for c
Click here to see answer by DRichardson(63)

Question 210946: Solv for the indicated letter
b=3c, for c
The solution is c=_____
Click here to see answer by DRichardson(63)

Question 210946: Solv for the indicated letter
b=3c, for c
The solution is c=_____
Click here to see answer by stanbon(75887)

Question 210945: In 1992 the life expectancy of males in a certain country was 69.4, it was 72.9 years. Let E repersent the life expectancy in year t and let t repersent the number of years since 1992
The linear function E(t) that fits the data is
E(t)=_____t+____
Use the function to predict the life expectancy of males in 2003.
E(11)=______
Click here to see answer by stanbon(75887)

Question 210911: v=9t+300
v=7t+400
Click here to see answer by checkley77(12844)

Question 210754: 1992 the life expectancy of males in a certain county was 69.4 years, in 1998 it was 72.9 years, let E repersent the life expectancy in year, and t repersent the number of years since 1992.
E(T)=___t+____
E(11)=_______
Click here to see answer by RAY100(1637)

Question 210909: 7x+2y=-8
8y=4x
Click here to see answer by edjones(8007)

Question 211088: This problem in extra work but i am confused. If anyone can help thanks.
Solve algebraically, using the five step method. Show all steps.
The width of a poool is 3/4 of its length. It takes 126 feet of fence to edge the pool What are the dimensions of the pool?
Click here to see answer by stanbon(75887)

Question 211087: This problem in extra work but i am confused. If anyone can help thanks.
Solve algebraically, using the five step method. Show all steps.
The area of a rectangle in 525cm^2 Find the dimensions of a rectangle if the ratio of the length to the width is 7:3
Click here to see answer by ankor@dixie-net.com(22740)

Question 211176: a bakery makes a special whole-grain bread using two kinds of flour. whole wheat and rye. the recipe for this bread calls for 1 oz rye flour for every 4 oz of whole-wheat flour. how many ounces of each kind of flour should be used to make a loaf of bread weighing 32 oz?
Click here to see answer by stanbon(75887)

Question 211181: the taco contained 1kg of onion for every 6.6kg of grilled steak. the total weight of these two ingredients was 617.6kg. to the nearst tenth of a kilogram, how many kilograms of onions and how many kilograms of grilled beef were used to make the taco?
Click here to see answer by rfer(16322)

Question 210963: Solve the linear system: 2x + 7y = 41, 2y = 3x + 1
Click here to see answer by ankor@dixie-net.com(22740)

Question 211290: -4x-15=57
5x+2y=11
How do you solve systems equations?
Click here to see answer by Alan3354(69443)

Question 211329: Three years ago, Jeff was twice as old as Mike is now. In nine years, Jeff will be four years older than Mike is now. What are their current ages?

Click here to see answer by stanbon(75887)

Question 211392: if a teller has 54 $5.00 and $20.00 bills in her drawer that total $780.00. How many of the bills are $5.00?
Click here to see answer by rapaljer(4671)

Question 211486: Need to find he values of x and y that solves the system equation
-4x + 5y = -10
5x - 4y = 8
Click here to see answer by jim_thompson5910(35256)

Question 211713: Write in standard form. Identify A,B, and C.
4x=8y-12
Click here to see answer by HyperBrain(694)

Question 211743: the present age of a father is three years more than three times the age of his son. three year hence,fathers age will be 10 years more than twice the age of his son. determine their present ages.
Click here to see answer by ankor@dixie-net.com(22740)

Question 211834: 2x^2+27x+56=0 please help factor
Click here to see answer by jim_thompson5910(35256)

Question 212035: If 4x + 2z = 8+5y what does "Y" equal?
Click here to see answer by ankor@dixie-net.com(22740)

Question 212086: Katie has a collection of nickels, dimes, and quarters with a total value of $4.35. There are 3 more dimes than nickels. How many of each coin is in her collection?
Could you help me as well as give me some tips when dealing with word problems in math?
Click here to see answer by stanbon(75887)

Question 212154: 13 - (3m + 27)/3 = -2m - 12
Click here to see answer by drj(1380)

Question 212241: my equation is f(x)= 4x i have to input f(6) and f(0) please help
Click here to see answer by stanbon(75887)

Question 212241: my equation is f(x)= 4x i have to input f(6) and f(0) please help
Click here to see answer by ichudov(507)

Question 212244: f(x)=2x+14
input: f(7), and f(-2)
Click here to see answer by ichudov(507)

Question 212244: f(x)=2x+14
input: f(7), and f(-2)
Click here to see answer by stanbon(75887)

Question 209884: how to eliminate variables by using the addition method?.
3x-4y+4z=7
x-y-2z=2
2x-3y+6z=5
Click here to see answer by stanbon(75887)

Question 212515: 0.2(x+3)- 4(2x-3)= 3.4
Click here to see answer by stanbon(75887)

Question 212446: 3x-2y=-7
x+y=1
Click here to see answer by drj(1380)

Question 212408: 3x+y=44
2x+y=31
Click here to see answer by drj(1380)

Question 212409: 3x+y=44
2x+y=31
Click here to see answer by drj(1380)

Question 212606: solve by subsitution
x+4y=3
2x+3y=-4
Click here to see answer by drj(1380)

Question 212630: 6x=2x-11 dont understand how to solve!
Click here to see answer by vleith(2983)

Question 212668: Write the equation in standard form using intergers.
y=-3/4x-4
Click here to see answer by rapaljer(4671)

Question 212668: Write the equation in standard form using intergers.
y=-3/4x-4
Click here to see answer by stanbon(75887)

Question 212519: Solve each equation
3/x-2 + 1/x+2 =12/x2 - 4
I know that I need to find a common denominator and to reduce the x squared would be:
3/X-2 + 1/X+2 = 12/(x+2)(x-2)

This is where I get confused.
The common denominator is x + 2
3 (x+2) + 1 (x-2) = 12
3x + 6 + 1x - 2 = 12
4x - 4 - 12 = 0
(2x - 3) (2x +4) = 0
Click here to see answer by stanbon(75887)

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