5. 5x + 4y = 7 -------(1)
2x + 7y = -8 ------(2)
From equation (1) ,we get :
y = (7-5x)/4
Put this into equation (2) , we get :
2x + (7)[(7-5x)/ 4] = -8
2x + (49-35x)/4 = -8
(8x + 49- 35x)/4 = -8
-27x + 49 = -32
49 + 32 = 27x
81 = 27x
x = 81/27
x= 3
y = (7-5x)/4
y = (7-5(3) )/4
y = -2
The solution is (3, -2) .
f. g(f(x)) 5) Solve the system of equations (4.1) (5x + 4y = 7 (2x + 7y=-8 6) Graph the inequality 3x + 5y > 3...
answer 9 b. (f-g)t Solve the system of equations (4.1) +4y -14 5x 7y-25 5) J=-3 6) Graph the inequality 3x+ 2ys 30. (3x+ 4y 2- 14 5x+ 7y s-25 7) Graph the system of linear inequalities 8) Find the value of $1000 invested in an account (2.5, 3.1, 3.2) a. Bearing 3 % simple interest after 5 years. b. Bearing 3 % interest compounded monthly after 5 years c Bearing 3 % interest compounded continuously after 5 years 9)...
7 Graph the system of linear inequalities 5x+4y= 7) · 2x + 7y = -85
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Solve the following system of equations. 2x+4y = 8 3x + 4y = 16 x = 0 Olo X y = -1
what is the answer to this inequalities 2x+3y<18, -4x-4y<8, -3x+4y<12, y>-13, y<2 and 4x-5y<20 ? ure hidden in one of the locations across the US. In order to find the locati coordinate points: the linear inequality system will send you right to the location of the treasure! The t located at the point that saties the sysfem. First one to find it, wins a prize!:) ure hidden in one of the locations across the US. In order to find the...