1,081 Answered Questions for the topic Equations

06/02/16

Working alone, Dan can sweep a porch in 15 minutes. Alberto can sweep the same porch in 11 minutes. If they worked together how long would it take them?
Working alone, Dan can sweep a porch in15 minutes. Alberto can sweep the sameporch in 11 minutes. If they workedtogether how long would it take them?
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Equations

05/25/16

3 bags of candy prizes total $143. The chocolate cost 3 times as much as the jelly beans, the hard candy cost 1 less than twice as much as the jelly beans.
Set up an equation to solve for each amount. 
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05/19/16

"Suppose you are taking a true-false test consisting of 5 questions. In how many ways can you answer the questions?" Why is the equation 2^5?
 I looked up the answer online and people said it was 32.  They explained it "2^5"  I know the 2 is because it's true or false, and the 5 is because there is five questions, but why the exponent... more
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05/18/16

right angle triangle
if a right angled triangle has the hypotenuse represented by (2x-7)cm, the bottom by x cm, and (x +5)cm on the back side,   how do you show that the perimeter P cm of the above triangle is given... more
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Equations Equation

05/05/16

show me how to solve for m in the following: x^2m * x^5= X^25
 please show the steps to solve, thanks x^2m * x^5= X^25
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05/04/16

If a kitten weighed 100 grams at birth and gained 8 grams per day, how many days will the kitten triple its weight
The topic is : Two step equations for 7th grade pre-algebra 
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05/04/16

How do you find the equation of perpendicular lines?
find the equation of the line that is perpendicular to 4y+x+40=O that passes through the point (1/2,0) 
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Equations

05/02/16

A rectangle has a length of 17 inches less than 7 times its width. If the area of the rectangle is 2204 square inches, find the length of the rectangle.
 quadratic equation question
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Equations Math Word Problem

04/29/16

what was the height of the 2 plants when their heights were equal?
n=3.65+0.35x m=4.25+0.15x   In the equations above, m and n represent the heights of bamboo plants, in feet, x weeks after September 15. What was the height of the 2 plants when their heights... more
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Equations

04/28/16

what equation relates her pay for a job to number of hours she works?
natasha charges $12 per hour for baby sitting in her neighborhood. what equation relates her pay for a job to number of hours she works?
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Equations

04/25/16

if it costs .07 to send a text message and .12 to send a picture you send twice as many text messages and spend 3.38. how many text messages do you send
I am confused  
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Equations

04/21/16

i have a question that came out on an online homework assignment for a 5th grader
The question is the numerator is 1 and when added to 1/6 equals to an answer with denominator 18 and also when the numerator is 1 and then added to 1/3 equals to an answer with denominator 9. How... more
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Equations

04/18/16

Twice the sum of a certain number and 26 is 72
It is a word problem
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Equations

04/13/16

A circular garden has a diameter of 12m. By how much should the diameter be increased to triple the area of the garden?
Solve with an equation. Provide a variable for each unknown.
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Equations

04/13/16

A sum of $1500 was invested, part at 8% and part at 12%. If the interest received in one year is $142, how much was invested at each rate?
Solve with an equation. Provide a variable for each unknown.
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Equations

04/13/16

A pigpen is marked off so that its width is one half of its length. If 4m are subtracted from the length and 24 m added to the width, the pigpen would be square
Find the dimensions of the pigpen. Solve with an equation. Provide a variable for each unknown.
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Equations Algebra Equation Linear

04/12/16

Linear and Nonlinear functions
Does the equation represent a linear or a nonlinear function? Explain. 2x+3y=7 y+x=4x+5
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Equations

04/12/16

A parking lot meter accepts only quarters and dollars. There are 31 coins with a value of $20.50. How many quarters and how many dollars are there?
Introduce a variable expression for each unknown. Write an equation to solve the problem.
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Equations

04/12/16

The equal sides of an isosceles triangle are each 3m less than twice the base. The perimeter is 44m. Find the lengths of the sides.
Introduce a variable expression for each unknown. Write an equation to solve the problem.  
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Equations

04/12/16

The speed of a motor boat is 5 times the speed of a row boat. The average speed of the two boats is 6km/hr. Calculate the speed of each boat.
Solve the word problem with an equation.  Introduce a variable for each unknown. Answer the equation with a concluding statement.
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Equations

04/11/16

A garden is 20m by 25m. It is surrounded by a walkway of uniform width. The outside perimeter of the walkway is 114m. What is the width of the walkway?
I need to solve it with an equation.
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Equations Algebra Seconds Height

04/11/16

Write an equation for the height of the penny at the time after it was dropped.
A penny was dropped from the window of a building, 64 feet above the ground. Write an equation for the height of the penny, h, at the time t seconds after it was dropped.
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Equations Algebra 1 Purchase

04/09/16

What will the value of the car be n years after Giorgio purchased it?
Giorgio bought a car for $21,000. The value depreciates 5% each year. What will the value of the car be n years after Giorgio purchased it.
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04/09/16

Write an equation to find b, the number of bacteria in the sample after d days.
The number of bacteria in a sample quadruples every 24 hours. There were 20 bacteria in the sample initially. Write an equation to find b, the number of bacteria in the sample after d days.
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04/08/16

Write an equation to represent c as a function of n.
Write an equivalent equation to represent c as a function of n by simplifying the expression on the right side of c(n)=0.5(500(1.03)n)
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