Answer:
40 minutes
Step-by-step explanation:
30x+45x=50
75x=50
x=.6667 hours or 40 minutes
check:
30 mph for 40 minutes=20 miles
45 mph for 40 minutes=30 miles
total=50 miles
Answer:
Function A
Step-by-step explanation:
Function A= 10x-3
Function B= -5x+25
A slope of 10 is greater than a slope of -5
Answer:
y = -7x
Explanation:
Take two points from table: (-4, 28), (-3, 21)
Find slope:


Now find equation:





2.3 i think let me know if it works