1,081 Answered Questions for the topic Equations

Equations Math

10/10/16

Solve the equation
5x-2(x+4)(x+2)=3(2x+1)
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10/08/16

Write an equation of the line - Show Work Please
Parallel to y = x - 1 Y - interecept: 3/4   Equation needs to be in slope-interecept form    
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10/08/16

Write an equation of the line - Show Work Please
Parallel to y = -3x + 7 Y - intercept: 0   Equation needs to be in slope-interecept form
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10/08/16

Write an equation of the line - Show Work Please
Parallel to y = 2x - 5 y-intercept: 1/3   Equation needs to be in slope-interecept form
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Equations Word Problems

10/06/16

equation, set up a word problem
Set up an equation and solve the following problem.The cube of a number equals sixteen times the same number. Find the number.   x=__________  smallest vallue x=__________ x=___________ largest... more
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Equations Math Word Problem

10/06/16

word problem, Eqation, Set up an equation
Set up an equation and solve the following problem.The combined area of two squares is 10 square meters. The sides of the larger square are three times as long as the sides of the smaller square.... more
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10/06/16

Algebra problem
Louisa is 3/4 as tall as Carla. The difference between their height is 0.4 meters. How tall is each girl?
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Equations

10/05/16

Sophia needs a solution that is 55% acid but has only solutions that are 18% acid and 72% acid. If he measures 140 mL of the 72% solution, write the correct equ
Sophia needs a solution that is 55% acid but has only solutions that are 18% acid and 72% acid. If he measures 140 mL of the 72% solution, write the correct equation to represent how many mL he... more
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Equations

10/05/16

2/3 - (x+2)/6 = (5x-2)/2
Please help! not sure how to start this
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Equations Math

10/04/16

math help,equations, solve for Y
Solve the equation for the indicated variable. (Assume a and b are positive real numbers.)            y^2-ay+28by-28ab=0    for y
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Equations

09/27/16

find variable
Casey is retiring and has $2.5 million to invest in stocks and bonds. Casey estimates that the stocks will have an average return of 9.5% and the bonds will pay 7% simple interest. Casey wants... more
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09/24/16

distance and rate
Two cyclists leave towns 174km apart at the same time and travel toward each other. One cyclist travels 10 /kmh faster than the other. If they meet in 3hours, what is the rate of each cyclist?
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Equations Rate

09/24/16

rate distance and time
A motorboat takes 4 hours to travel 128km going upstream. The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
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Equations

09/23/16

rate distance and time
Two jets leave an air base at the same time and travel in opposite directions. One jet travels 85 /mih slower than the other. If the two jets are 6068mi apart after 4 hours, what is the rate of... more
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Equations

09/23/16

Is there any number of months after which both George and Elaine will have paid the same amount?
george makes a $1000 down payment for a car and then pays $325 per month. Elaine makes a $2500 down payment for a car and then pays $325 per month. 
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Equations

09/22/16

write the equation for a line with a slope of -3 and that passes through the point (1,1)
Graphing equations
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Equations Perpendicular

09/22/16

Write the equation of a line perpendicular to y=-5x+6 thru (6,-2)
Write the equation of a line perpendicular to y=-5x+6 thru (6,-2)
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09/21/16

Why is ln(e+5) = lne + ln5 false?
You can't distribute the natural log? I don't understand.
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Equations Linear Models

09/18/16

This is about using linear models
After 5 months the number of subscribers to a newspaper was 5730. After 7 months the number of subscribers was 6022. Write an equation to represent this linear model and use it to find out how many... more
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Equations

09/18/16

Solving the equation with the variable on both sides
X/2,000 = [X– .11(798)]/1,620 X= 462    The answer is 462. But, I do not understand the process of solving for X that led to the answer. I need a breakdown to understand how the equation is... more
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09/16/16

Three sandwiches and a hotdog cost $65, while one sandwich and 3 hotdogs $35. How much two sandwiches and 2 hotdogs cost?
I couldn't get the right equation in this word problem. What must be the correct solution?Your best explanation would be a great help. Thanks.
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09/16/16

Together, Thomas, Ping and Lydia earn $144,000 per month. If Thomas earns $12,000 more than Ping and $18,000 more than Lydia, how much does Thomas earn?
I can't figure out the answer from the choices. I'm getting $50,000 for Thomas. My equation for this is: (x+12,000) + (x+18,000) + x = $144,000   I think there's something wrong with my... more
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Equations

09/09/16

Half a number is 7 less than twice the number. How do I write this?
Half a number is 7 less than twice the number. How do I write this?
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Equations Math Lcd Solve For N

09/07/16

math, LCD, equations, solve for N
N + 6n-5/9  - 6 = 3n+2/3
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Equations Math Fractions

09/07/16

Math - equations, solve for x
n/18 - 2/3 = 5/6   solve for N
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