Answer:
(a) -6x- y = 3
(b) 3x-4y =12
(c)-2x + 5y = 10
(d) x + 2y = 4
(e) 8x- 4y = 3
(f) 4x + 5y = -6
A certain car dealership sells economy cars, luxury cars, and sport utility vehicles. The ratio of economy to luxury cars is 3:2
. The ratio of economy cars to sport utility vehicles is 4:3. What is the ratio of luxury cars to sport utility vehicles?
A. 9:8
B. 8:9
C. 3:2
D. 2:3
E. 1:2
A. 9:8
B. 8:9
C. 3:2
D. 2:3
E. 1:2
1 answer:
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Step-by-step explanation:
Divide two on both sides to get rid of it and the make the equation in the form y = mx + c
y = 3/2x + 5
since both lines are parallel they must have the same gradient which is 3/2
y = 3/2x + c
All you have to do now is to replace x and y with (2, -5) to find c
x = 2
y = -5
-5 = 3/2 × 2 + c
-5 = 3 + c
c = -5-3
c = -8