09/01/15

how do u solve xy-4xz=5 and get the answer for x
this is for home work and i need help
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09/01/15

1/2x+-5/3=-1/2x+19/4
this a math problem someone please help me :)
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09/01/15

if the ratio of girls to boys is 9 to 4 and there are 20 boys,how many total students are there?
In the 8th grade the ratio of girls to boys is 9 to 4. If there are 20 boys, how many total students are in class?
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09/01/15

A set U is partitioned into two subsets, G and H. The number of elements in H is four times that in G. If n(U)=60, find n(H).
If someone could explain to me or show how to solve problems like this that would be great. My teacher didn't go over it very specifically because most people in my class already had learned it... more
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09/01/15

If x^negative 2 = 16, what is the value of x^2?
If x^negative 2 = 16, what is the value of x^2?
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09/01/15

what is the center and randius of the circle
x^2+y^2-12x+2y+33=0
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09/01/15

In ?ABC, m?A = 105°, b = 13, and c = 21. Identify a rounded to the nearest tenth.
                                Options:   27.4 26.1 21.8 13.6
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09/01/15

Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree.
                              Options:   KL ≈ 0.30; ML ≈ 0.04; m∠K = 8° KL ≈ 0.30; ML ≈ 0.04; m∠K = 98° KL ≈ 3.28; ML ≈ 0.46; m∠K = 8° KL ≈ 0.46; ML ≈ 3.28; m∠K = 8°
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08/31/15

One number is 8 more than a secondvnumber. If their sum is 88, fiND the two numbers
I need to know the steps to the question. 
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Jab

08/31/15

The difference of a numbers z and 11 is equal to 35
I don't know what this means
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08/31/15

The sum of three consecutive odd integers if the first integer is x
The sumf three consecutive odd integres if the first integer is x
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08/31/15

What must your average be on the next 5 quizzes to increase your average to 81 out of 100?
Suppose your average, after taking 3 quizzes, is 76 (out of 100). What must your average be on the next 5 quizzes to increase your average to 81 out of 100?
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08/31/15

Using 2, 4, 6, 8, 10 and any other symbols to create an equation? (=0)
The exact problem says this;   Use each of the numbers 2, 4, 6, 8, and 10 exactly once, with any operation signs and grouping symbols, to write an expression equal to 0.    (Using... more
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08/31/15

Understand the example but not this question, other than by common sense.
A scale drawing of an office building is not labeled, but indicates 1/4 inch = 5 feet. On the drawing, one wall measures 2 inches. How long is the actual wall?
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08/31/15

What is the greatest number she is thinking of if you round of to the nearest hundred and got 700
If I'm thinking of a number but had to round it of to the nearest hundred and get 700. What is the greatest number can I get?
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08/31/15

A solution that is 30% salt is mixed with a solution that is 40% salt.
The answer choices are 30,35,38,40,45 Which of the following are not possible choices for the concentration of salt in the resulting mixture?
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08/31/15

one Factor Of 3x^2-6x+9 Is ?
Help Please
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08/31/15

Solve the equation algebraially
The perimeter of a rectangle is 164 feet. The length is 3 feet less than 4 times the width. Find the dimensions of the rectangle.
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08/31/15

Factors of 9m^2+20m+104 = to
factors of 9m^2+20m+104=
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08/31/15

Find the ratio of a to b
Find the Ratio of a to b, that a≠0 and b≠0.1- a=4b2- 4a=b3- 7a+5b=04- 2a-3b=05- a/6 =b/96- 17/a=11/b7- 13/3a=2/7b
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08/31/15

How much water must be added to a later of 90% acid solution to make a 70% acid solution?
A math problem found from a 9th grade math textbook.
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08/31/15

Setting up an equation to solve a three number word problem.
Find the angle measures of a triangle if the second angle measures 10 degrees less than twice the first, and the third angle measures 25 degrees more than the second.
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08/30/15

Suppose you buy lunch for the math club. You have enough money to buy 20 salads or 15 sandwiches. The group wants 12 sandwiches. How many salads can you buy?
 I dont know where to start. 
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08/30/15

a 35 foot ladder is leaning against the side of a building and is positioned such that the base of the ladder is 21 feet from the base of the building.
How far above the ground is the point where the ladder touches the building? Round your answer to the nearest hundredth.
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08/30/15

Rational Equations: Word Problem
The time it takes for a canoe to go 3 miles upstream and return is 4 hours. The current in the lake is 1 mile per hour. Find the average speed of the canoe in still water.
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