Answer:
D. and
Step-by-step explanation:
Proportional ratios are ratios that represent the same relationship. One way to check this is to reduce the ratios, because if they are proportional, they will equal the same thing. Both and simplify to .
Hope this helps!!
its D
if you divide 10/15 its .666 and if you divide 14/21 its .666 so there equal BRAINLEIST????
below
that is the procedure above
They used 6 vans and 3 buses
x + y= 9
13x + 40y= 198
x= 9 - y
13(9 - y) + 40y= 198
117 - 13y + 40y= 198
27y= 81
y= 3
9-3= 6
a = 1, b = 2, c = 3