Answer:
6x^2+5x-6
Step-by-step explanation:
Answer:
100 feet apart
Step-by-step explanation:
Each line represents 40 feet. Ayla is 6 lines past 0 and Ahmad is 4 feet past 0. 6 times 10 is 60 and 4 times 10 is 40. 60+40=100 feet apart
Answer:
x= 15
Step-by-step explanation:
23-8= 15
x=15
Answer:
Rate in still water = 27.5 mph
Current's rate = 12.5 mph
Step-by-step explanation:
Let
x mph = row team rate in still water
y mph = current's rate
<u>Upstream:</u>
Distance = 30 miles
Time = 2 hours
Rate = x - y mph
Then

<u>Downstream:</u>
Distance = 30 miles
Time = 45 minutes
hour
Rate = x + y mph
Then

From the first equation:

From the second equation:

Add these two equations:

Subtract these two equations:

B is incorrect which means it is the answer