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Question 93365: Write an algebraic equation for the english statement. "Subtract 5 from the sum of x and 7 times 3 and the result is 20.
I came up with -5+6 = 7x3=20
I don't know if this is written in the right equation, please help!
Click here to see answer by praseenakos@yahoo.com(417)

Question 93367: Write an english version of the following equations;
a) 2x-5=+1 to write this in english I came up with two x is less than 5 plus one more. ( I know this is not right, I need help with these)
b) 2(x+2)=14
c) n+5=n/2-6
d) 7-3a=5+a
I don't know how to translate these into english word problems, help please as you can see I messed up A bad!!!
Click here to see answer by jayanthihemkos@yahoo.com(87)

Question 93450: When the positve even integer n is increased by 50 percent of itself, the result is between 10 and 20. What is one possible value of n?
Click here to see answer by checkley75(3666)

Question 93451: A school ordered $600 worth of lightbulbs. Some of the lightbulbs cost $1 each and the others cost $2 each. If twice as many $1 bulbs as $2 bulbs were ordered, how many lightbulbs were ordered altogehter?
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Question 93457: If 4(x+y)(x-y) = 40 and x - y = 20, what is the value of x + y?
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Question 93456: The perimeter of a rectangular plot of land is 250 meters, what is the area of the plot, in square meters?
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Question 93625: 5(x-8)-(x+6)=18
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Question 93447: If the areas of two regions are equal and the sum of the areas of the regions is 5, what is the average (arithmetic mean) of the areas of the two regions?
Click here to see answer by edjones(3299)

Question 93654: If 0 (less then and equal to) x (less than and equal to 8 and -1 (less than and equal to) y (less than and equal to) 3, which of the following gives the set of all possible values of xy?
(A) xy = 4
(B) 0 (less than and equal to) xy (less than and equal to) 24
(C) -1 (less than and equal to) xy (less than and equal to) 11
(D) -1 (less than and equal to) xy (less than and equal to) 24
(E) -8 (less than and equal to) xy (less than and equal to) 24
Click here to see answer by stanbon(26297)

Question 93655: After the first term, each term in a sequence is 3 greater than 1/3 of the preceeding term. If t is the first term of the sequence and t (cannot be = to) 0, what is the ratio of the second term to the first term?
(A) t+9/3
(B) t+3/3
(C) t+9/3t
(D) t+3/3t
(E) 9-2t/3
Click here to see answer by stanbon(26297)

Question 93652: A bag contains only red marbles, blue marbles, and yellow marbles. The probability of randomly selecting a red marble from this bag is 1/4, and the probability of randomly selecting a blue marble is 1/6. Which of the following could be the total number of marbles in the bag?
(A) 10
(B) 12
(C) 18
(D) 20
(E) 30
Click here to see answer by stanbon(26297)

Question 93649: In a rectangular coordinate system, the center of a circle has coordinates (5,12), and the circle touches the x-axis at one point only. What is the radius of the circle?
Click here to see answer by praseenakos@yahoo.com(417)

Question 93646: Let S be the set of all integers that can be written as , where n is a nonzero integer. Which of the following integers is in S?
Answer is... 16, 28, 35, 39, or 50 ?
Click here to see answer by stanbon(26297)

Question 93681: 12x+20=6(x+4)
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Question 93680: 5(x-4)-1=-7x+3
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Question 93678: 6n - 7 = 2n + 17
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Question 93674: 3x - 8(3-x) = 53
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Question 93672: 2( x + 4 ) - 5( x - 3 ) = 32
Click here to see answer by praseenakos@yahoo.com(417)

Question 93692: 8=-8x+4(4+2x)
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Question 93694: -4(2n-5)=-8n-20
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Question 93689: 2x+4(x+1)=6(x+2/3)
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Question 93686: 8t+11-6t=5t+35
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Question 93673: 1/3(2x-7)=4
Click here to see answer by jayanthihemkos@yahoo.com(87)

Question 93784: If a, b, c, and f are four nonzero numbers, then all of the following proportions are equivalent EXCEPT
(A) a/f = b/c
(B) f/c = b/a
(C) c/a = f/b
(D) a/c = b/f
(E) af/bc = l/l
Click here to see answer by stanbon(26297)

Question 93751: If a and b are positive integers and (a^1/2 b^1/3)^6 = 432, what is the value of ab?
Click here to see answer by ankor@dixie-net.com(6693)

Question 94170: HELP! I am showing you all of my work,
if I am the one making a mistake,
please point it out to me,
or,
this is a typo and needs to be addressed!
I have been stumped all day with two questions:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Factor completely.
b²-ab-6a²
A) (b + 3a)(b – 2a)
B) (b + 6a)(b – a)
C) (b – 3a)(b + 2a)
D) (b – 6a)(b + a)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(b²)-(ab)-(6a²)
Remove the parenthesis around the expression b².
b²-(ab)-(6a²)
Multiply -1 by the ab inside the parenthesis.
b²-ab-(6a²)
Multiply -1 by the 6a² inside the parenthesis.
b²-ab-6a²
Reorder the polynomial b²-ab-6a²
alphabetically from left to right,
starting with the highest order term.
-6a² - ab + b²
Answer:
-6a² - ab + b²
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Factor.
50x3 – 90x2
A) 50x2(x – 90)
B) –10x2(–5x – 90)
C) –50x(x2 – 90x)
D) –10x2(–5x + 9)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(90x²)-(50x³)
Remove the parenthesis around the expression 90x².
90x²-(50x³)
Multiply -1 by the 50x³ inside the parenthesis.
90x²-50x³
Reorder the polynomial 90x²-50x³
alphabetically from left to right,
starting with the highest order term.
-50x³+90x²
Factor out the GCF of -10x² from the expression -50x³
-10x²(5x)+90x²
Factor out the GCF of -10x² from the expression 90x².
-10x²(5x)-10x²(-9)
Factor out the GCF of -10x² from -50x³+90x².
-10x²(5x-9)
Answer:
-10²(5x-9)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Click here to see answer by checkley75(3666)

Question 94348: how are the expressions 3 to the 4th power and 4 to the 3rd power diffrent??
Click here to see answer by checkley71(8405)

Question 94530: what is the domain of y=cos^-1(x)
Click here to see answer by edjones(3299)

Question 94524: simplify e^4lnx
Click here to see answer by stanbon(26297)

Question 94687: solving for variables
---------------------
solve for I
A=P+I
Click here to see answer by edjones(3299)

Question 94829: The Acme Plumbing Company will send a team of 3 plumbers to work on a certain job. The company has 4 experienced plumbers and 4 trainees. If a team consists of 1 experienced plumber and 2 trainees, how many different such teams are possible?
Click here to see answer by stanbon(26297)

Question 94828: The sum of two numbers that differ by 1 is t. In terms of t, what is the value ofthe greater of the two numbers?
(A) t-1/2
(B) t/2
(C) t+1/2
(D) t/2+1
(E) 2t-1/2
Click here to see answer by stanbon(26297)

Question 94830: If p, r, and s are three different prime numbers greater than 2, and n = p X r X s, how many positive factors, including 1 and n, does n have?
Click here to see answer by edjones(3299)

Question 94908: If 30 percent of m is 40, what is 15 percent of m?
Click here to see answer by stanbon(26297)

Question 94911: If n is any negative number, which of the following must be positive?
(A) n/2
(B) 2n
(C) n + 2
(D) n - 2
(E) 2 - n
Click here to see answer by stanbon(26297)

Question 94909: The ratio of 1.2 to 1 is equal to which of the following ratios?
(A) 1 to 2
(B) 12 to 1
(C) 5 to 6
(D) 6 to 5
(E) 6 to 50
Click here to see answer by stanbon(26297)

Question 95373: x+6=3(5-x)
Click here to see answer by edjones(3299)

Question 94906: How many integers in the set of all integers from 1 to 100, inclusive, are not the square of an integer?
Click here to see answer by bucky(1732)

Question 94907: If the sum of the consecutive integers from -22 to x, inclusive, is 72, what is the value of x?
Click here to see answer by bucky(1732)

Question 95415This question is from textbook
: a bus went 318 km farther than a car. the car went 1/3 as far as the bus. how far did each vehicle travel? choices for cars distance: 147, 151, 159This question is from textbook

Click here to see answer by scott8148(3385)

Question 95521: 54-6/2+6 = ?
a. 6
b. 24
c. 27
d. 30
e. 57
I need explanation please Thanks

Click here to see answer by checkley71(8405)

Question 95277: If the sum of the consecutive integers from -22 to x, inclusive, is 72, what is the value of x?
Click here to see answer by ankor@dixie-net.com(6693)

Question 95679: I am to use a real life situation that follows a linear equation with the independent variable being years. What would the slope tell you about future years?
I don't even know where to start here, I would appreciate your help!
Click here to see answer by stanbon(26297)

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