Answer:
the system of equation has infinite solution
Step-by-step explanation:
, 
Solve the first equation for x_2
Subtract 5x1 on both sides
Now substitute -5x1 on second equation
0=0
So the system of equation has infinite solution
Answer:
No.
Step-by-step explanation:
A function must pass the Vertical Line Test. The equation given is a circle on the coordinate plane. Therefore, since there will be 2 points for the same <em>x</em> value, it will not be a function.
Speed can be defined as the <em><u>distance covered per time. </u></em>
The average speed formula is given as: Distance/Time
The average speed of Samuel's morning training is 7 2/3 miles/hour
We are to calculate the time in hours. Remember conversion rate :
60 minutes = 1 hour
He did 3 activities every morning
- a) Ran for 30 minutes, covering 4.5 miles.
60 minutes = 1 hour
30 minutes = ?
Cross Multiply = 30 minutes x 1 hour / 60 minutes
= 0.5 hour
Hence: Speed = 4.5 miles/0.5 hour
= 9 miles/hour
- b) Swam for 20 minutes, covering 2/3 miles
60 minutes = 1 hour
20 minutes = ?
Cross Multiply = 20 minutes x 1 hour / 60 minutes
= 1/3 hour
Hence: Speed = 2/3 miles/ 1/3 hour
= 2/3 x 3/1 (miles/hour)
= 2 miles/hour
- c) Biked for 45 min, covering 9 miles.
60 minutes = 1 hour
45 minutes = ?
Cross Multiply = 45 minutes x 1 hour / 60 minutes
= 3/4 hour
Hence: Speed = 9 miles/ 3/4 hour
= 9 x 4/3 (miles/hour)
= 12 miles/hour
- Samuel's average speed during his morning training is calculated as:
(9 + 2 + 12) miles/hour / 3
= 23/3
= 7 2/3 miles/hour
To learn more, visit the link below:
brainly.com/question/14796641
Answer:
x ≤ 2
Step-by-step explanation:
Answer:
X=10
Step-by-step explanation:
You can subtract 180 by 110 to get 70. Then you can do 8x+30+70=180
Add 30+70 to get 100
Subtract 100 to 180 to get 80.
8x=80
You divide 8 from both sides which leaves you with x=10.
