1,090 Answered Questions for the topic Math Equations

Math Equations

11/29/16

–3x + 9 = –3(2x + 3) + 3(x – 4) + 1
I cant simplify this someone help!!!please
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Math Equations Math

11/20/16

A boat travels 6 miles downstream in 30 minutes and the return trip upstream takes 45 minutes. Find the rate of the current.
D=RT story problems on distance for my class
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Math Equations

11/14/16

2/9 plus 4/9
I have to write the answer in simplest form
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Math Equations

11/08/16

equivalent expressions
If f(x) = 3x - 5 and g(x) = x - 9, what expression is equivalent to (f*g)(x)?
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Math Equations

10/27/16

1\2n=7 what is N
help if been on this question for hours
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Math Equations

10/16/16

log (x3)+log (x4) / log(60x) = 5 x=
I can't seem to be able to put the answer on webworkk
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Math Equations Maths Math Help Math Question

10/03/16

Need some help on this word problem
The cost to produce x units of wire is C=20x+550?, while the revenue is R= 45x. Find all intervals where the product will at least break even.   A. The inequality in interval notation is _____B.... more
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10/03/16

word problem help
Andrew can paint the? neighbor's house 2 times as fast as Bailey. The year Andrew and Bailey worked? together, it took them 7 days. How long would it take each to paint the?... more
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10/01/16

(5,-7); 2x+7y=8
Write an equation for a line passing through ?(5?,−7?) and perpendicular to the line2x+7y=8.
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09/26/16

cant find answer! help please!
A building is 3 ft from a 12-ft fence that surrounds the property. A worker wants to wash a window in the building 17 ft from the ground. He plans to place a ladder over the fence so it rests... more
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Math Equations Math Math Help Math Question

09/26/16

Math help please
A rectangular piece of metal is 25 in longer than it is wide. Squares with sides 5 in long are cut from the four corners and the flaps are folded upward to form an open box. If the volume of the... more
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Math Equations Maths Math Help Math Question

09/26/16

I need some help with this math problem please.
The length of each side of a square is 3 in. more than the length of each side of a smaller square. The sum of the areas of the squares is 185 in^2. Find the lengths of the sides of the two... more
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09/26/16

Can't get the answer to this.
High concentrations of carbon monoxide CO can cause coma and possible death. The time required for a person to reach a COHb level capable of causing a coma can be approximated by the quadratic... more
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09/25/16

Functions Need Help
At an amusement park, a person spends $30 on admission and food, and then goes on r number of rides thatcost $2 each.     a. State the dependent and independent variables.   b. Write an... more
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Math Equations

09/24/16

cookie question
If I have 2 cookies and I know that 50% of them have raisins and 50% of them have chocolate chips what are the odds for outcome A) 1 cookie has both chocolate chips and raisins and B) one cookie... more
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09/22/16

Math help!!
A projectile is launched from ground level with an initial velocity of v 0 feet per second. Neglecting air? resistance, its height in feet t seconds after launch is given by S=-16t^2+v 0t. Find... more
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09/19/16

I need help solving this math word problem
Membership warehouse clubs offer shoppers low? prices, along with rewards of cash back on club purchases. If the yearly fee for a warehouse club membership is? $100 and the reward rate is 2?% on... more
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09/19/16

Having trouble getting these 2 answers for this math word problem
In planning her retirement, Liza deposits some money at 1.5% interest, with twice as much deposited at 4?%. Find the amount deposited at each rate if the total annual interest income is $1615. she... more
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09/19/16

I need help getting the answer to this math word problem
How many gallons of a 50% antifreeze solution must be mixed of 90 gallons of 30% antifreeze to get a mixture that is 40% antifreeze? use the 6 step method. Strength Gal of solution Gal of Anti 50%... more
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Math Equations

09/15/16

A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 22 feetfeet less than the length of the ladder. Find the
A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 22 feetfeet less than the length of the ladder. Find the length of the ladder if the distance... more
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Math Equations

09/13/16

More equations
11-7x+8x=-4 -2? anyone smh
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Math Equations

09/13/16

My question is an equations I can't figure out
4 subtracted from 8 times a number is 26
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Math Equations Math College Algebra Math Help

09/11/16

For the following code segment calculate the total number of additions and subtractions taking place for a positive value of x For a := 3 to x
Need help with finding the answer to this math problem.   For a := 3 to x Ans = Ans + 3a – 4x + 4 Next a
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Math Equations

09/03/16

A piece of fabric for a quilt design is in the shape of a parallelogram. The base is 5 in and the height is 2.4 in.
A piece of fabric for a quilt design is in the shape of a parallelogram. The base is 5 in and the height is 2.4 in. What is the total area of the 22 parallelogram pieces needed for the? quilt
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Math Equations

09/01/16

A=1/2bh; b=21, h=26
A=1/2bh; b=21, h=26 Use the formula and the values given to find the value of the remaining variable
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