B) 2
C) 3
D) 4
The solution to the system shown is _____.
(0, k)
(2, 2)
(k, 0)
Answer:
(k,0)
Step-by-step explanation:
To solve for x and y we add both equations
---------------------------
Divide both sides by 2
Now plug in k for x and find out y
Subtract k on both sides
Ordered pair is (x,y) that is (k,0)
Answer: She would have to burn between 220 and 240 calories per minute to have a calorie burn rate between those of Martin and Paul.
Step-by-step explanation:
Martin:
360 calories / 30 min = 12 calories/min
Paul:
165 calories / 15 min = 11 calories/min
Kara:
Needs to burn between 11 and 12 calories/min, so we'll calculate the range:
11 calories/min x 20 min = 220 calories (minimum # calories she can burn)
12 calories/min x 20 min = 240 calories (maximum # calories she can burn)