Tutors Answer Your Questions about Linear-systems (FREE)
Question 206724: Can you help me in translating this statement into equation? "A man has three sums of money invested, one at 4%, one at 5% and one at 3%. His total yearly income from the three investments is P1400. The last investment yields 100 more per year than the other two combined. If he could receive 1% more on each investment, his annual income would be increased by P400. How much does he invested at each rate?
Click here to see answer by stanbon(75887)  |
Question 206987: A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 per day plus $0.50 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Basic Rental a better deal than that for Roadrunners?
Click here to see answer by checkley77(12844) |
Question 206991: You need to choose between two telephone plans for local calls. Plan A charges $25 per month for unlimited calls. Plan B has a monthly fee of $13 with a charge of $0.06 per local call. How many local telephone calls in a month make Plan A the better deal?
Click here to see answer by checkley77(12844) |
Question 206990: You need to choose between two telephone plans for local calls. Plan A charges $25 per month for unlimited calls. Plan B has a monthly fee of $13 with a charge of $0.06 per local call. How many local telephone calls in a month make Plan A the better deal?
Click here to see answer by checkley77(12844) |
Question 206985: A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 per day plus $0.50 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Basic Rental a better deal than that for Roadrunners?
Click here to see answer by rfer(16322) |
Question 206985: A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 per day plus $0.50 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Basic Rental a better deal than that for Roadrunners?
Click here to see answer by MathTherapy(10552)  |
Question 207161: Write a system of two equations in two unknowns. Solve the system by using the substitution method. « The length of a rectangular field is 12 feet longer than the width. If the perimeter is 144 feet, then what are the length and width
Click here to see answer by jojo14344(1513) |
Question 207160: Write a system of two equations in two unknowns. Solve the system by using the substitution method. « The length of a rectangular field is 12 feet longer than the width. If the perimeter is 144 feet, then what are the length and width
Click here to see answer by jojo14344(1513) |
Question 207166: 0. given f(x) =8x -2 and g(x) = 2x -3 find f-g
1. given f(x) =5x + 4 and g (x) =3x-8 find f.g
2. given f(x) +2 -2x and g(x) = -6 +2, find f+g
3. find the distance between the pair of points (-1, -4) and (-5, -7)
4. find the distance between the pair of points (-2, -6) and (7, -3)
5. find the midpoint of the line segment with the given and points (2,1) and (6,8)
6. find the center and radius of a circle given the following equation of the circle x^2 + y^2 = 100
7. given f(x) = -3x + 2 and g(x) = 2x +9, find (gof)(x)
8. given f(x) = 5x +7 and g(x) = 5x -1 find (fog)(x)
9. write the standard form of the equation of the circle with the given center(-2, -4) and the radius 6.
Click here to see answer by solver91311(24713)  |
Question 207166: 0. given f(x) =8x -2 and g(x) = 2x -3 find f-g
1. given f(x) =5x + 4 and g (x) =3x-8 find f.g
2. given f(x) +2 -2x and g(x) = -6 +2, find f+g
3. find the distance between the pair of points (-1, -4) and (-5, -7)
4. find the distance between the pair of points (-2, -6) and (7, -3)
5. find the midpoint of the line segment with the given and points (2,1) and (6,8)
6. find the center and radius of a circle given the following equation of the circle x^2 + y^2 = 100
7. given f(x) = -3x + 2 and g(x) = 2x +9, find (gof)(x)
8. given f(x) = 5x +7 and g(x) = 5x -1 find (fog)(x)
9. write the standard form of the equation of the circle with the given center(-2, -4) and the radius 6.
Click here to see answer by Alan3354(69443)  |
Question 207151: Write a system of two equations in two unknowns. Solve the system by using the substitution method. « The length of a rectangular field is 12 feet longer than the width. If the perimeter is 144 feet, then what are the length and width
Click here to see answer by rfer(16322) |
Question 207193: For each line, use the given conditions to write an equation in the point-slope form and the slope-intercept form.
Slope = 4, passing through (1, 3)
Slope = 8, passing through (4, –1)
Slope = –5, passing through (–4, –2)
Slope = –2, passing through (0, –3)
Click here to see answer by Alan3354(69443) |
Question 207193: For each line, use the given conditions to write an equation in the point-slope form and the slope-intercept form.
Slope = 4, passing through (1, 3)
Slope = 8, passing through (4, –1)
Slope = –5, passing through (–4, –2)
Slope = –2, passing through (0, –3)
Click here to see answer by solver91311(24713) |
Question 207593: Solve each system using substitution
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1.the sum of two numbers is 27. one number is 3 more than the other. find the numbers
2.find the two numbers whose sum is 58 and whose difference is 16.
3.the difference between two numbers is 18. twice the smaller number plus 3 times the larger is 74. what are the numbers?
Click here to see answer by mickclns(59) |
Question 207859: Find the solution to each systm by the addition (elimination) method.
26. 4s - 5t = 18
6s +10t = -8
I thought i understood this last semester think i an just confusing myself. my answers were t = -2 and s = 7 to me it just doesn't seem right.
Click here to see answer by Alan3354(69443) |
Question 207711: Solve for X, Y, and Z in the following systems of three equations using either substition or elimination methods:
a. X + 2Y + Z = 6
X + Y = 4
3X + Y + Z = 8
b. 10X + Y + Z = 12
8X + 2Y +Z = 11
20X - 10Y - 2Z = 8
c. 22X + 5Y + 7Z = 12
10X + 3Y + 2Z = 5
9X + 2Y + 12Z = 14
Click here to see answer by pjalgeb(9) |
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