Tutors Answer Your Questions about Linear-equations (FREE)
Question 1080866: Find the equation of the line that contains the point(-4,18) and is parallel to the line that contains(2,-2) and (6,3) enter your answer in the form y=mx+b. Unfactored do not use decimals leave improper fractions improper
Click here to see answer by Alan3354(69443)  |
Question 1080870: Find an equation of the line that contains the point(4,-9) and is parallel to the line that contains(-4,8) and (8,-1) enter your answer in the form y=mx+b unfactored do not use decimals leave improper fractions improper
Click here to see answer by Alan3354(69443)  |
Question 1081017: The Baker family and the Gray family each used their sprinklers last summer. The water output rate for the Baker family's sprinkler was 35L per hour. The water output rate for the Gray family's sprinkler was 40L per hour. The families used their sprinklers for a combined total of 60 hours, resulting in a total water output of 2200L. How long was each sprinkler used?
Click here to see answer by ikleyn(52781)  |
Question 1081157: Please help me solve this problem: Write an equation that passes through the point (4, 2) and is (A) parallel and (B) perpendicular to the line y=2x-3. I tried solving a few pairs of coordinates for y=2x-3 such as (0, -3), (1, -1), (2, 1), (3, 3), (4, 5), and (5, 7). Please help on this question. Thank you!
Click here to see answer by josgarithmetic(39617) |
Question 1081205: Identical nickels are placed in a container and the total mass is recorded. The table gives information about the total mass of different numbers of nickels in the container.
number of nickels(n) total mass (g)
4 ------ 60g
6 ------ 65g
10 ------ 75g
Use the data to determine the number of nickels in the container when the total mass is 185g. Justify your answer.
Click here to see answer by josgarithmetic(39617) |
Question 1081772: Given that (3, 2, –6) and (–2, 5, 1) are solutions of two equations in a system of three linear equations, which of the following is true about the system?
a.The system can only be consistent and independent.
b.The system can be either inconsistent and independent or consistent and dependent.
c.The system can be either inconsistent and dependent or consistent and independent.
d.The system can only be inconsistent and dependent.
Click here to see answer by ikleyn(52781)  |
Question 1081902: Juan is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices. Company A charges $92 and allows unlimited mileage. Company B has an initial fee of $65 and charges an additional $0.90 for every mile driven.
For what mileages will Company A charge less than Company B? Use m for the number of miles driven, and solve your inequality for m.
Click here to see answer by josmiceli(19441)  |
Question 1081896: For her phone service, Ivanna pays a monthly fee of $20, and she pays an additional $0.04 per minute of use. The least she has been charged in a month is $79.36. What are the possible numbers of minutes she has used her phone in a month?
Use m for the number of minutes, and solve your inequality for m.
Click here to see answer by Theo(13342)  |
Question 1082104: The worldwide consumption of cigarettes has been increasing steadily in recent years. The number of trillions of cigarettes, y, purchased x years after 1960, is estimated by the linear equation
y= .075x+2.5
(a) sketch a graph of the linear equation
(b) what interpretation can be given to the y-intercept of the graph?
(c) When were there 4 trillion cigarettes sold?
(d) If this trend continues, how many cigarettes will be sold in the year 2020?
Click here to see answer by Boreal(15235)  |
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