1,090 Answered Questions for the topic Math Equations

Math Equations Maths Square Root Math Help

11/08/14

3 x square root of 27 = 3^n

3 x square root of 27 = 3^n  Find the value of n.   Please explain how to answer this question. Thank you :)   P.S. How do you insert a square root symbol (so as to make asking questions like... more
Math Equations Math

11/06/14

How many solutions does the system have? y = –2x + 2 y = x^2 – 2x + 4

I need help please..........................................
Math Equations Probability

11/05/14

You have a bag with three red marbles, two green marbles, and four blue marbles What is the probability of picking a blue or green marble?

i dont know how to answer this need help  
Math Equations

11/05/14

what is 5/2 divided by 5/8 in simplest form

I want to divide candy for friends.
Math Equations Math Help Math Problem

11/05/14

math problem

at 1:00 pm ,the boat on a river passes a point that is 3 miles from a lodge. At 5:30, the boat passes a point that is 8 miles from the lodge. Graph the line that represents the boat's distance from... more
Math Equations

11/02/14

Write the algebracic equation needed to determine when the company will break even

a greeting card company can sell cards for $2.75 each, so the revenue can be calculated using the formula R=2.75x The companys total cost of a fixed overhead of $12,000 plus 35 cents per card, so... more
Math Equations

11/01/14

calculate the equation

0.033x+x2-1.5876×10-10=0
Math Equations

11/01/14

how can i calculate the equation

X=( a*100)/(b+a), where a/b=0.513  

10/29/14

How much interest is earned in 10 years invested on $5,000 invested at an interest rate of 7% per year?

Another problem that I am having difficulty solving.

10/29/14

Kira owes the bank some money at 6% per year. After one year, she paid $80 in interest. How much money does she still owe to the bank?

Just a math problem that I have been stuck on for a while.
Math Equations Word Problems

10/26/14

If a person travels 55 miles per hour, how long will it take to travel from one town to the other?

On a map with a scale of 1 inch + 100 miles, the distance between two cities is 7.5 inches.  If a person travels 55 miles per hour, how long will it take to travel from one town to the other?

10/23/14

A Web music store offers two versions of a popular song. The size of the standard version is

A Web music store offers two versions of a popular song. The size of the standard version is 2.8 megabytes (MB). The size of the high-quality version is 4.4 MB. Yesterday, there were 910 downloads... more
Math Equations

10/22/14

x is an integer and 9 < x2 < 99. What is the maximum value of x minus the minimum value of x?

x is an integer and 9 < x2 < 99. What is the maximum value of x minus the minimum value of x?  
Math Equations

10/16/14

labor cost

Mark and Rachel work for a landscaping company. Mark can finish a planting job in 3 hours and Rachel can finish the job in 4 hours. if they work together on the job and the cost of labor is 40... more

10/15/14

Algebra word problem help

David's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs David $5.75per pound, and type B coffee costs $4.45per pound. This month, David made 176 pounds of... more
Math Equations

10/13/14

there are 2 numbers whose sum is 50. Three times the first is 5 more than twice the second. What is the smaller number?

It is a word problem that is confusing me and my friends and we dont understand it. Please help thanks.

10/12/14

The Inverse Square Law of Light states that the luminosity of a light source varies inversely..

The Inverse Square Law of Light states that the luminosity of a light source varies inversely to the square of the distance from the light source. When a light meter is 7 feet away from a light... more
Math Equations Math Word Problem Algerbra

10/12/14

If a computer prints 21.9 lines in 12 seconds, how many lines can it print per minute? (Round to the nearest tenth.)

If a computer prints 21.9 lines in 12 seconds, how many lines can it print per minute? (Round to the nearest tenth.)
Math Equations

10/11/14

The Green neon lights flashes every 12 seconds, the red every 7 seconds, the blue every 5 seconds. If all the lights flash together at 8:00 P.M.,

then after how many minutes will they flash together again?    Answer this ASAP. Thanks :)) with Solution and Answer.
Math Equations

10/06/14

an equation of a line passing through the points (1,2) and (3,-2)

a, y= 1/2x+4 or b, y=2(x+2) or c, y/2=x+4 or d, y-x/2=8 
Math Equations

10/06/14

X divided by 6 subtract 20 equals negative 19 what is x?

X divided by 6 subtract 20 equals -19 what is x? I am looking for the answer & I want to understand how to get the answer I'm really terrible when it comes to math & equations >.<
Math Equations

10/02/14

how much must be invested today at an annual rate of 3% to yield $80,000 at the end of 15 years

how much must be invested today at an annual rate of 3% to yield $80,000 at the end of 15 years

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