9514 1404 393
Answer:
(x, y) = (-1, -3)
Step-by-step explanation:
The equations are "consistent" and "not dependent." This will be the case whenever the ratios of x- and y-coefficients are different.
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We can solve this by "elimination" by multiplying the first equation by -4 and adding the result of the second equation being multiplied by 7.
-4(2x -7y) +7(7x -4y) = -4(19) +7(5)
-8x +28y +49x -28y = -76 +35 . . . . eliminate parentheses
41x = -41 . . . . . simplify
x = -1 . . . . . . . divide by 41
Using the second equation, we find y to be ...
(7x -5)/4 = y = (7(-1) -5)/4 = -12/4 = -3
So, the solution is (x, y) = (-1, -3).
Slope= -5/3 when using y^2-y^1 divided by x^2-x^1
The correct answer would be 8
Answer:
Amount of money share by Jess = £25.70
Another Amount of money share by Jess = £34.3
Step-by-step explanation:
Given:
Amount of money Jess have = £60
Sharing ratio = 3 : 4
Find:
Amount of money share by Jess
Computation:
Sharing amount = Shared ratio / Sum of ratio
Amount of money share by Jess = 60[3/(3+4)]
Amount of money share by Jess = 60[3/(7)]
Amount of money share by Jess = 180 / 7
Amount of money share by Jess = £25.70
Another Amount of money share by Jess = £60 - £25.70
Another Amount of money share by Jess = £34.3
Answer:
.006453
Step-by-step explanation:
6.453 x 10^-3
Move the decimal 3 places to the left since the exponent is negative
006.453
.006453
