606 Answered Questions for the topic Equation

Equation Equations

11/01/15

6th Grade Math Question
A company's monthly cost C, in dollars, for storing X surplus units of a product is C=1200+2.15X. What is the number of surplus units that can be stored for a monthly cost of $3200?
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Equation

10/29/15

the sum of carol's current age and her age last year 27 how old is carol?
it about the age and it include addition and doubling up of the sum   
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Equation Algebra Solution

10/28/15

application problem
One container holds 10 L of a 25% alcohol solution. How much water should be added to dilute the solution to only 15%. I have to write an equation and solve
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Equation Algebra Ratio

10/28/15

application problem
The ratio of red and blue marbles is 2:3. There are 550 marbles altogether. How many are red? I have to write an equation and solve.
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10/28/15

Application problem
A train travels east from Chicago at 6pm at 45 mph (EST. A train travels west from Cleveland at 35 mph at 7 pm (EST). If the cities are 285 miles apart and the trains are barreling toward each... more
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10/28/15

application problem
Barb goes on a diet and loses 1/3 of her body weight. If she weighs 120 AFTER the diet, how many pounds did she weigh before? I have to write an equation and solve.
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10/28/15

application problem
Your grades on the first 7 quizzes averaged 88%, what score will you need to average on the last 3 to average 90% for the semester? I have to write an equation and solve.
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Equation Algebra

10/28/15

Application problem
Each test is worth 100 points, your final is worth 150. Your HW grade is worth 50 points. Your final also replaces your worst exam. You scored 35 on the first exam, 65 on the second. You have 50... more
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Equation Algebra Solutions

10/28/15

application problem
You have two solutions one contains 40% acid, the other 10% acid. You require 10 gallons of a 20% solution. How much of the 10% should you use? I have to write an equation and solve.
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10/18/15

please help
Use substitution to solve the following system of equations:   4x-y=5 2x+3y=-8
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Equation Math Algebra Simplify

10/16/15

help please
Simplify these expressions:   A) {(2x^2y^3)÷(3xy^4)}^2   B) {(x^3y^-2)÷(x^-1y^5)}^-1
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Equation Math Algebra Factor

10/16/15

help please
Factor the following polynomials completely:   A) 3x^4-12x^2   B) 4x^2-12x+9   C) 6x^2-x-12   D) 3x^3+3x^2y-18xy^2
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Equation Temperature

10/11/15

Write and solve an equation to determine the temperature.
If six times a temperature is increased by 60 degrees, it is the same as 12 times the temperature. Write and solve an equation to determine the temperature.
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10/10/15

Write and solve an equation to determine the number of hours for which the two costs would be the same.
Ms. Silver wants to hire a painter to paint her house. Painters Plus charges $2,220 plus $45 per hours. Davis & Sons charges $1,850 plus $65 per hour. Write and solve an equation to determine... more
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10/10/15

Write and solve and equation to determine the perimeter of the trianlge
The perimeter of a triangle increased by 6 is the same as 42 decreased by 8 times the perimeter. Write and solve and equation to determine the perimeter of the triangle.
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10/08/15

Cost of two items must equal $700
Karen has a set budget of $700 for flowers for the reception. Roses cost $18 per dozen and daisies cost $10 per dozen. If 50 dozen flowers are to be purchased, how many dozen of each type can be... more
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10/07/15

Determine an equation of the line that is perpendicular to X=4 and passes through (2,3)
Determine an equation of the line that is perpendicular to X=4 and passes through (2,3)
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10/06/15

Inequalities
On my math paper I had the following equation:   5/4(x+4) ≤ ½(x+8) -8   This is my work:   5/4(x+4) ≤ ½(x+8) -8 4(5/4(x+4) ≤ ½(x+8) -8) 5(x+4) ≤ 2(x+8) -32 5x+20 ≤ 2x+16-32 -2x    ... more
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10/06/15

Determine an equation, in slope intercept form, for the line that has the given slope m and the given y intercept b
   m=2, b=7
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10/05/15

Determine an equation, in point-slope form, for the line that passes through the given ordered pair with given slope m.
(-1,-3), m=4 
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10/02/15

I need serious help..
A satellite dish is shaped like a parabolic reflector. The satellite signals hit the surface of the dish and reflect to a single point, the focus, where the receiver is located. if the the dish is... more
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10/01/15

Solve the equation...
Solve the equation 58e4t+1=30 exactly for t.
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Equation

09/28/15

Setting up an equation to find time
You run and bike a total of 23 km in 1.25 hours. You run at 10 km/hr and bike 24 km/hr. Write an equation to find the time you spend running and the time you spend biking.
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Equation

09/24/15

two years of local internet service costs 685 dollars including the installation fee of 85 dollars what is the monthly fee?
Solve with w part equation
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Equation

09/21/15

what is the equation of (3.4) with radius of 14
Write  the equation of the  circle  entered at (3.4) with radius of 14
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