1,090 Answered Questions for the topic Math Equations

Math Equations Math Word Problem

03/17/15

Milan bought 21 pounds of rice for $12. How many dollars did he pay per pound of rice
Milan bought 21 pounds of rice for $12. How many dollars did he pay per pound of rice
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03/12/15

Boat travels with the current at 22km/h and against the current 12km/h. What is the rate in still water? What is the rate of the current?
A boat travels with the current at 22km/h and travels against the current at 12km/h. What is the rate of the boat in still water? What is the rate of the current?
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03/12/15

Wind and Water Current Problem
A powerboat has a four-hour supply of gasoline. How far can this boat travel from the marina if the rate out against the current is 40km/h and the rate back in with the current is 60km/h?
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03/12/15

Help please! Wind and Water Current Problem
Amy can paddle in still water at 6mph. The Saco River is flowing at 2mph. How far downstream can Sam travel if he must return in two hours?
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03/12/15

Please help. WInd and Water Current Problem
Suppose you can paddle a canoe in still water at 5 km/h and that you are going to travel 6km up a river and 6km back. If the river current is 1km/h, find your total time and average speed for the... more
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Math Equations

03/12/15

finding present value and compound interest
$900 compound amount, 1 3/4 terms of investment, 18% nominal rate, interest compounded monthly.
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Math Equations

03/12/15

how to calculate present value and compound interest
$150,000 compound amount, 22 years term of investment, 15% nominal rate, interest compounded annually.
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Math Equations Two Step Eqations

03/12/15

How many more bracelets, x, does she need to sell in order to reach her goal?
Jinny is selling bracelets for $2.50. So far, she has earned $220.00. She needs to earn more than $305.00 in order to meet her goal. How many more bracelets, x, does she need to sell in order to... more
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Math Equations Jo

03/12/15

-4x-5y=-4 x=2y=4
4-x-5y=-4 x+2y=4
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Math Equations

03/11/15

what is percent notation for 1/5 and need to show work
need to show work for a math problem percent notation for 1/5
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Math Equations

03/10/15

markups with just a selling price
As the manager of Dollar Depot, calculate the amount of the markup and the percent markup on selling price per case if these Softies products cost your store $5.60 per case of 12 boxes
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Math Equations Algebra 1

03/10/15

Multiply: The answer should also be fully simplified
(2/3p4y3)(y4s5)(6p2s3)   Multiply it
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Math Equations Math

03/10/15

find the slope-intercept for mof the line passingthrough (5,20) and (0,5)
find the slope-intercept for mof the line passingthrough (5,20) and (0,5)
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03/09/15

Math help please!!
Describe the domain of the function f(x)=sqhareroot of 3x-5
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Math Equations

03/09/15

What is the function for radius? Equation is a=pieradiussquared
I need help on this problem for a math quiz!! Please help. I am lost! any help I can get would be perfect thanks!
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Math Equations

03/07/15

Please help me write the equation that goes with the following word problem and solve it using invert operations.
Your piggy banks starts off with 3 dollars,each day you put 2 dollars on it. After a certain amount of days, there are 19 dollars in your piggy bank. Which of the following equations represents the... more
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Math Equations Precalculus Math Help

03/05/15

Pre Calculus Word Problem. Please show work, Thanks!
You work for a small flower shop which wishes to determine how much to charge for a boquet of flowers. The higher price you charge, the fewer bouquets you will sell, but the more money you will... more
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Math Equations Math Algebra 1 Algebra

03/04/15

30 coins, all nickels, dimes, and quarters, worth $4.60. There are three times as many quarters as nickels and two more dimes than quarters.
I have 30 coins, all nickels, dimes, and quarters, worth $4.60. There are three times as many quarters as nickels and two more dimes than quarters. How many of each kind of coin do I have? *Using... more
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Math Equations Math Equations Math Help

03/04/15

Mix some cashews costing $8 per kg with nuts costing $10 per kg. Wants to sell 12kg of the mixture for $8.50 per kg. How many kg of cashews are needed?
A grocer wants to mix together some cashews costing $8 per kg with some Brazil nuts costing $10 per kg. The grocer wants to sell 12 kg of the mixture for $8.50 per kg. How many kg of cashews are... more
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Math Equations Math Math Help Math Question

03/04/15

Invested $4000 more in bonds paying 12% annual int.than she did in stocks paying dividends of 5% per year. Her total annual income from these investments is...
Emma invested $4000 more in bonds paying 12% annual interest than she did in stocks paying dividends of 5% per year. her total annual income from these investments is $814.90. How much did she... more
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Math Equations

03/04/15

Can you show how to do this problem ?
A scientist planted seeds in 4 sections of soil for an experiment. Not all of the seeds grew into plants.TABLE Section Size of section (Square feet) Number of plants 1 25 13 2 100 38 3 125 47 4... more
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Math Equations

03/03/15

do I times by 2 once I get the answer
A regular lightbulb uses 20 watts less than twice the power of an energy-saver lightbulb. If the regular bulb uses 170 watts, how much does the energy-saver bulb use?
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Math Equations Math Algebra 1 Algebra 2

03/03/15

Please help me solve by substitution!?
injave no idea what to do, please help me!   x+y=1 2x-y=2
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03/03/15

what is 10 more than 651 ?
Want to find a esay way to understand  
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Math Equations

03/01/15

If g(x) = x2 + 3x - 2, find g(-2)
    If g(x) = x2 + 3x - 2, find g(-2) x2 is x squared Therefore -2 squared - 6 - 2 =                                  4 - 8 = -4                                   g(x) = -4
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