1,382 Answered Questions for the topic Linear Equations

Linear Equations

05/24/20

Translate the sentence into an equation.

The sum of 2 times a number and 6 is equal to 7
Linear Equations

05/22/20

Kelly had 24 dimes and quarters worth $3.60. How many of each coin does she have

Linear Equations Math Grade 9 Grade 9 Math

05/21/20

Grade 9 math linear equations

Leon took three of her friends to visit the zoo. The bus fares cost $5.50 per person. The cost of admission to the zoo was the same for each person in the group. Leon spent $109 altogether on fares... more
Linear Equations Math Grade 9 Grade 9 Math

05/21/20

Grade 9 math linear equations

An equilateral triangle has a perimeter of 17.85 metres. The side length of the triangle , in metres, is 2k - 0.5. What is the value of k ?
Linear Equations Word Problem Grade 9 Math

05/19/20

Grade 9 math/ linear equations/word problem

the sun takes 25.38 earth days to rotate once about the axis. This time is 3.92 earth days less than half the time that mercury takes to rotate about it's axis. how many earth days does mercury... more
Linear Equations Algebra 1 Linear Algebra Algebra

05/14/20

A quick answer for this question?

If A is a sequare matrix of order 3 and |A|=5 ,then |(2A)-1| is equal to?A)2/5B)1/40C)8/5D)1/10
Linear Equations Algebra 1 Linear Algebra Algebra

05/14/20

Quick less than an hour whats the answer for this?

Let A be a 3x3 matrix, and suppose that the matrix B is obtained from A by : R1←→R2; 5R2+R3→R3.If |A|= -12, then |B| =??
Linear Equations Math Statistics Economics

05/13/20

The table below gives the bushels of corn per acre resulting from the use of various amounts of fertilizer in pounds per acre:

n (1st column) BUSHELS OF CORN PRODUCED (Y) (2nd column) AMOUNT FERTILIZER USED (X) (3rd column) 1 (n) 4 (y) 6 (x) 2 44 10 3 46 12 4 48 ... more

05/06/20

Linear algebra question

Show that the following sets of vectors of R3 are linearly independentand span R3:(a) S1 = {(1, 2, 3),(3, 2, 1),(0, 0, 1)}.(b) S2 = {(3, 0, −6),(−4, 1, 7),(−2, 1, 5)}.
Linear Equations English Linear Algebra

05/06/20

Linear algebra question

Show that the following sets of vectors of R3 are linearly independentand span R3:(a) S1 = {(1, 2, 3),(3, 2, 1),(0, 0, 1)}.(b) S2 = {(3, 0, −6),(−4, 1, 7),(−2, 1, 5)}.
Linear Equations

04/30/20

Equation of line

I need to find equation of the line that is perpendicular to y = -1/4x - 2 and goes through the point (-2,-3)
Linear Equations Math Equation Of The Line

04/23/20

I need help to mathematically find the shortest distance from the origin to the line 2x-5y+10=0

I need to have the answer in one decimal place. I am super confused because I cannot really ask questions due to the current situation (COVID-19)
Linear Equations Algebra 1 Prealgebra Algebra

04/15/20

You are choosing between two different cell phone plans. The first plan charges a rate of 23 cents per minute. The second plan charges a monthly fee of $29.95 plus 8 cents per minute.

You are choosing between two different cell phone plans. The first plan charges a rate of 23 cents per minute. The second plan charges a monthly fee of $29.95 plus 8 cents per minute. How many... more
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

Using algebra, find the point at which the line f ( x ) = − 3 x + 2 intersects the line h ( x ) = 4 x + 2

Using algebra, find the point at which the line f(x)=−3x+2 intersects the line h(x)=4x+2(x,y)=(___,___)
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

The end of the third month this year, you have $510 saved. At the end of the seventh month this year, you have saved $626.

The end of the third month this year, you have $510 saved. At the end of the seventh month this year, you have saved $626.Write an equation to model this situation (use m for months and s for... more
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

On a bicycle, Stephanie rides for 2 hours and is 30 miles from her house. After riding for 5 hours, she is 66 miles away.

On a bicycle, Stephanie rides for 2 hours and is 30 miles from her house. After riding for 5 hours, she is 66 miles away.What is Stephanie's rate?______  miles per hourHow far away from her house... more
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

A company discovers that to produce x=870 new electronic parts, it will cost y=$89,170. To produce 860 new electronic parts, it will cost $88,260.

A company discovers that to produce x=870 new electronic parts, it will cost y=$89,170. To produce 860 new electronic parts, it will cost $88,260.Compute the slope of the costs and choose the most... more
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

If you drive 230 miles and use 10 gallons of gas, what is your rate of gas consumption?

If you drive 230 miles and use 10 gallons of gas, what is your rate of gas consumption?______miles per gallon
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

Write an equation for a line perpendicular to y = 2 x − 1 and passing through the point (-2,6)

Write an equation for a line perpendicular to y=2x−1 and passing through the point (-2,6)
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

Find an equation for the line parallel to y = − 3 x + 4 and goes through the point ( 10 , − 6 ) . Write your answer in the form y = m x + b .

Find an equation for the line parallel to y=−3x+4 and goes through the point (10,−6).Write your answer in the form y=mx+b.
Linear Equations Algebra 1 Algebra 2 Prealgebra

04/15/20

Find the equation for the line that passes through ( 6 , − 7 ) that has slope 9/7 .Give your answer in point-slope form. You do not need to simplify.

Find the equation for the line that passes through (6,−7) that has slope 9/7. Give your answer in point-slope form. You do not need to simplify.
Linear Equations Math

04/13/20

Writing Linear Functions

A student writes the equation for a line that has a slope of -6 and passes through the point (2, –8).y -(-8) = -6(x - 2)y -(-8) = -6x + 12y -(-8) + 8 = -6x + 12 + 8y = -6x + 20Explain why the work... more

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