The car is worth 17,200.
20,000x .14=2800
20,000-2,800=17,200.
Answer:
2.5
Step-by-step explanation:
given that y is proportional to x then the equation relating them is
y = kx ← k is the constant of proportionality
y = 2.5x is in this form with k = 2.5
3x-5y=4------eq1
4x+3y=15-------------eq2
multiply 3 to first eq and 5 to second eq.
9x-15y=12
20x+15y=75
subtract both eqs
29x=87 x=3 so put x in eq 1
3(3)-5y=4
5y=5
y=1
