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Question 39515: It is estimated that the Earth is losing 4000 species of plants and animals per year. If S represents the number of species living last year year, how many species are on Earth this year..
Click here to see answer by fractalier(1804)

Question 39470: Solve each equation. identify each equation as a conditional equation, an inconsistent equation, or an identity.
1/2b - 1/2=1/4b
Click here to see answer by fractalier(1804)

Question 39428: 2y/x^2+2x+1 + x/x^2-1
Click here to see answer by fractalier(1804)

Question 39564: If a < b, then -a >-b Why?
Click here to see answer by Nate(3495)

Question 39558: Solve the solution set to each inequality in interval notation and sketch its graph.
-3 <_ x <_ - 1 (Note I couldn't get the dash to go underneath the sign)

For each graph, write the corresponding inequality and the solution set to the inequality using interval notation
_|___|__|__|__|_| (_|_]
-5 -4 -3 -2 -1 0 1 2
Click here to see answer by Nate(3495)

Question 39586: solving equations that contain fractions. 6x-1 divided by 5 minus 2x divided by 3 = 3
I used the LCM which is 15, then I used the distrubutive property for both fractions. From then on I don't know what to do, if I am doing it right at all, I don't know. Please help.
Click here to see answer by stanbon(26259)

Question 39595: 56-6/2+6=?
Click here to see answer by checkley71(8405)

Question 39594: Order of operations with equations
-4(2x – 3) = -8x + 5

Click here to see answer by checkley71(8405)

Question 39566: Additive property of equality:
Solve for w
w + 4 = 5

Solution to a linear equation in two variables: Problem type 1
Provide an ordered pair (u,v) of numbers that satisfy the equation
4u - v = 5

Signed decimal addition
Add:
-9.4 + 19 + (-8.3)

Absolute value of a number
What is the absolute value of -10 -9 -5 + 72 -54?

Converting a fraction to a repeating decimal
26/9 Write as a decimal. if necessary, use a bar to indicate which digit or group of digits repeat
Click here to see answer by checkley71(8405)

Question 39494: Solve each linear equation. Show your work and check you answer
9 - 2m/7 = 19
3(x - 0.87) - 2x = 4.98
Solve each problem
Fahrenheit temperature. Water boil at 212 F.
a) Use the accompanying graph to determine the Celsius temperature at which water boild
Celsius temperature 100

50
0
0 100 212
b) Find the Fahrenheir temperature of hot tap water at 70 C by solving the equation
70 = 5/9 (F - 32)
Click here to see answer by checkley71(8405)

Question 39641: Use an equation, inequality, or formula to solve the problem
Living comfortably. Gary has figured that he needs to take home $30,400 a year to live comfortably. If the government gets 24% of Gary's income, then what must his income be for him to live comfortably?
Click here to see answer by checkley71(8405)

Question 39640: Layoffs looming. American Products plans to lay off 10% of its employees in its aerospace division and 15% of its employees in its agricultural division. If altogether 12% of the 3000 employees in these two division will be laid off, then how many employees are in each division?
Click here to see answer by checkley71(8405)

Question 39648: can someone please help me with the equation. I keep coming up with 2 for an answer
Solve each eqwuation. Identify each eqwuation as a conditional equation, an inconsistent equation or an identity
1/2b - 1/2 - 1/4b
Please Help. Thank you
Click here to see answer by stanbon(26259)

Question 39689: Please help me to solve this equation. I am coming up with two answers and is not sure of either.
19-3n=2n
Click here to see answer by siouxie(6)

Question 39697: Solve each equation by first eliminating the fractions.
1/2q - 6 = 1/5q

Solve each equation by first eliminating the decimal numbers
0.5b + 3.4 = 0.2b + 12.4

Solve each equation. If you feel proficient enough, try simplying the process
4x - 2 = -8 + 5x

Solve each equation. Identify each as a conditional equation, an inconsistent equation, or a identity
3 - 3(5 - x) = 0

Solve each equation
-3 - 4(t - 5) = -2(t + 3) + 11
Click here to see answer by stanbon(26259)

Question 39696: Please help me answser the following guestions.
Converting a fraction to a repeating decimal
26/9 write as a decimal. If necesssary, use a bar to indicate which digit or group of digits repeat.

Ordering fractions
Use <,>, or = to order the three fraction paris below
(a) 3/8 [ ] 15/40
(b) 5/11 [ ] 4/9
(c) 11/14 { ] 3/4

Solving a linear equation with several occurances of the variable: Problem 1
Solve the following equation for t:
7 (t - 8) + 2t = -20
Simply your answer as much as possible

Additive property of equality: Problem type 2
What is the value of w if
w - 4(2+3) = -5*2
Please help me, I just cannot figure these problems out, Thank you very much
Click here to see answer by stanbon(26259)

Question 39669: I am so sorry. This is the problem
Solve each equation. Identify each equation as a conditional equation, an inconsistent equation, or an identity
1/2b - 1/2 = 1/4b
Please help me with this problem. I wrote it down wrong the last time. thank so much
Click here to see answer by fractalier(1804)

Question 39707: 5 pieces of fruit more apples than bananas equal number of banana and oranges
Click here to see answer by checkley71(8405)

Question 39704: Show a complete solution to each problem
Adjusting antifreeze. Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain this by mixing some pure antifreeze with an appropiate amount of a 40% antifreeze solution. How many quarts of each should she use?

Solve each inequality. State the solution set in interval notation and sketch its graph.
1/6 - 1/3t > 0

Solve each inequality. State the solution set in interval notation and sketch its graph
-3/5 < 1/5 - 2/15w < -1/3

Solve each of the following problems by using an inequality.
Car Selling. Ronald wants to sell his car through a broker who charges a commission of 10% of the selling proce. Ronald still owes $11,025 on the car. Ronald must get enough to at least pay off the loan. What is the range of the selling price?
Click here to see answer by stanbon(26259)

Question 39729: Find the equation if
X Y
0 9.5
1 9
2 8.5
3 8
Click here to see answer by smik(40)

Question 39604: Please help me figure out this problem,thank you.
I don't know the best way to type this ,but Perform the indicated operations. Remember the rules for the order of operations.
-5 then little two on right side - 3
Click here to see answer by stanbon(26259)

Question 39614: perform the indicated operation using the rules for the order of operations..

-5 power of 2 -3
-5^2 -3

Click here to see answer by siouxie(6)

Question 39772: Solve each equation for y.
y + 1/2 = -1/3 (x + 1/2)

ISBN: 13-978-0-07-326862-0
Click here to see answer by checkley71(8405)

Question 39753: 2A/3=8+4A
Click here to see answer by checkley71(8405)

Question 39804: 1/y-1+5/12=-2/3y-3
Click here to see answer by fractalier(1804)

Question 39812: solve E/e=(R+r)/r, solve for r
E/e =(R/r)+1
R/r=(E/e)-1
R/r = (E-e)/e
r/R=e/(E-e)
r=Re/(E-e)
Cheers,
Stan H.
Click here to see answer by fractalier(1804)

Question 39812: solve E/e=(R+r)/r, solve for r
E/e =(R/r)+1
R/r=(E/e)-1
R/r = (E-e)/e
r/R=e/(E-e)
r=Re/(E-e)
Cheers,
Stan H.
Click here to see answer by stanbon(26259)

Question 39829: The line that has a slope 1/2 and contains (5,6)
Click here to see answer by venugopalramana(3286)

Question 39319: how can you solve an equations with one variable and two numbers if they have a neggative and positive sign.
Click here to see answer by fractalier(1804)

Question 39892: which of the following could be a term in the expansion of (x+y)^7
1. 35xy^7
2. 35x^8 y^-1
3. 35 x^7 y
4. 35 x^2 y^8
5. 35 x^3 y^4
Click here to see answer by fractalier(1804)

Question 40060: Write the following phrase using symbols.
m decreased by by 4
Click here to see answer by fractalier(1804)

Question 40059: Write the following phrase using symbols. Use the variable x to represent the number.
A number divided by 10
Click here to see answer by fractalier(1804)

Question 40064This question is from textbook Aplied Algebra & Trig
: It has been 20+ years and algebra still makes me phisically sick. I am stumped on the silliest of things.
1/3(2a-8)-7 = 2/5a
The common denominator (as far as I can tell) is 15, then each term gets * by the common denom...
so does that mean?
15/3(30a-8)-105 = 15/5aThis question is from textbook Aplied Algebra & Trig

Click here to see answer by atif.muhammad(135)

Question 38721:
Can you help me solve this problem?
Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be defective. About how many defective bottles should Julio allow before rejecting the entire line?
Thanks!
Click here to see answer by fractalier(1804)

Question 40245: Please help me simplify this equasion 2x+5y+9x
Click here to see answer by vidhyak(78)

Question 40246: can you please help me write an algebraic expression for the verbal expression, three times the sum of a and b increased by a?
Click here to see answer by Nate(3495)

Question 40244: please help me solve 2x=5y=9x
Click here to see answer by longjonsilver(2297)

Question 40305: x/3 = x/2 -2
I cant remember how to do this.
Thanks,
Pat
Click here to see answer by stanbon(26259)

Question 40307: 8x/x+1=4-8/x+1
Click here to see answer by stanbon(26259)

Question 40307: 8x/x+1=4-8/x+1
Click here to see answer by fractalier(1804)

Question 40350: 13x+10=23
Click here to see answer by abcdefg(37)

Question 40353: 13x+10=23
Click here to see answer by abcdefg(37)

Question 40423: Can someone help please?
Can these equations be solved?
w + x + y + z = 60
w = 1/2(x + y +z)
x = 1/3(w + y+ z)
y = 1/4(w + x + z)
Thanks
geocee
Click here to see answer by fazlerabbi(9)

Question 40471: please help me solve this equation: 2x^2+4x=-2
Click here to see answer by Nate(3495)

Question 40488: 3x-2y=6 solve for x
thank you
Click here to see answer by stanbon(26259)

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