Answer: yes, they are proportional
Step-by-step explanation:
15/20 = 36/48 (cross multiplication)
15 x 48 = 720
36 x 20 = 720
Answer:
(5,20)
Step-by-step explanation:
Because 3x+2(4x)=55 is then 11x=55, then divide the both by 11 to get x=5
The substitute y=4(5) because of x the get y=20
Step-by-step explanation:
it seems the answer is four (option a)
