? Please elaborate on your problems so that others can help you prevail
6x-42=4x
6x= 4x +42
2x= 42
x=21
Answer:
D
Step-by-step explanation:
Discount = 35% of 220

= $ 77
Amount saved =$ 77
Answer: 30 mph is the answer.
Step-by-step explanation:
s = 3 miles
t = 6 minutes
so,
60 minute = 1 hour
1 minute = 1/60 hour
6 minutes = 1/60 * 6 = 0.1 hour
so
average speed = s/t
= 3/0.1 = 30 mph