Tutors Answer Your Questions about Linear-systems (FREE)
Question 1065057: Hi, my name is Sierra. It says I have to solve the system of linear equations by graphing. The equations are 4x-4y=20, y=5. I am not sure how to solve, please at least give the the x and y of each with the slope. Thank you
Click here to see answer by ikleyn(52786)   |
Question 1065170: Without graphing, answer the questions for the following linear system. x+4y=0, 8y=−2x (a) Is the system inconsistent, or are the equations dependent, or neither? (b) Is the graph a pair of intersecting lines, a pair of parallel lines, or one line? (c) Does the system have one solution, no solution, or an infinite number of solutions?
Click here to see answer by Alan3354(69443)  |
Question 1065413: This is a word problem. A rectangle has a perimeter of 112 meters. If the width is 6 meters longer than the length,find the area of the rectangle.
I tried L=2L+2w plugged in L=6+2 and got 48. Am I doing this right?
Click here to see answer by ikleyn(52786) |
Question 1065413: This is a word problem. A rectangle has a perimeter of 112 meters. If the width is 6 meters longer than the length,find the area of the rectangle.
I tried L=2L+2w plugged in L=6+2 and got 48. Am I doing this right?
Click here to see answer by Alan3354(69443) |
Question 1064455: Neil gets in an elevator at the 30th floor and begins to descend at a speed of 8 feet per second. After 12 seconds, the elevator is 240 feet above the ground. Let y= the height in feet of the elevator and let x= the seconds after Neil got in. Write an equation to show the relationship between the independent and dependent variables. Thank you!!
Click here to see answer by Fombitz(32388)  |
Question 1065579: You earn $10 per hour working as a manager at a grocery store. You are required to work at the grocery store at least 8 hours per week. You also teach music lessons for 15$ per hour. You need to earn at least $120 per week, but you do not want to work more than 20 hours per week.
A. Write a system of linear inequalities that represent the situation.
B. identity and interpret a solution of the system.
C. Use a graph to determine whether you can work 8 hours at the grocery store and teach 1 hour of music lessons.
THANK YOU!!
Click here to see answer by Fombitz(32388) |
Question 1065807: Disney held a breakfast for parents and their children to eat with Mickey And Minnie Mouse (and the rest of the gang too!) Adult tickets cost $17.95 and the children's tickets cost $12.95. Disney made $7355 from ticket sales from a total of 500 people that attended. How many adults and how many children were at the breakfast?
Click here to see answer by solver91311(24713)  |
Question 1066316: Please help! Class was canceled today homework is due online and I can't figure these out for the life of me.
1) If possible write the following equation in slope-intercept form.
3x+4y+42=x+y
a) What is the value of m when written in slope-intercept form? If the equation cannot be written in slope-intercept form, enter none in the box.
m=
b=
2)) Decide whether the following function is linear or not:
g(w)=−1−6w/3
If so write the equation in slope-intercept form, g(w)=mw+b, and enter the values for m and b in the blanks below. If the expression is not linear, write none in both blanks.
m=
b=
Click here to see answer by josgarithmetic(39617) |
Question 1066470: A school bus takes children who live more than 2 miles from school. The school is at the origin on a coordinate plane. Bob lives at the point of y=5x-4. If each unit stands for 1 mile. Does Bob live far enough to use the service?
Click here to see answer by Alan3354(69443) |
Question 1066470: A school bus takes children who live more than 2 miles from school. The school is at the origin on a coordinate plane. Bob lives at the point of y=5x-4. If each unit stands for 1 mile. Does Bob live far enough to use the service?
Click here to see answer by ikleyn(52786) |
Question 1067708: A telephone company manufactures two diffrent models of phones: Model 120 is cordless and model 140 is not cordlss it takes 1 hour to manufacture the cordless phone and 1 hour and 30 mimuntes to manufacture the tradtional phone. at least 300 of the cordless models are to be produced the manufavturer realizes a profit per phone of $12 afor model 120 and $10 for model 140, If at most 1000 hours are to be allocated to the manufacture of both phones combined how many of each model should be produced to maximize total profit.
Click here to see answer by Theo(13342)  |
Question 1067951: I need help, I got 'no solution' for this equation, but I'm not sure if it is correct. Can someone check the work to see if it is no solution? Please? Thank you so much for helping me :)
4x + 7y = 3
4x + 7y = 5
Click here to see answer by t0hierry(194)  |
Question 1067951: I need help, I got 'no solution' for this equation, but I'm not sure if it is correct. Can someone check the work to see if it is no solution? Please? Thank you so much for helping me :)
4x + 7y = 3
4x + 7y = 5
Click here to see answer by ikleyn(52786) |
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