Let x = times in the pool
Let y = times in the basketball courts
42=3x+5y
x+y=12
Therefore y = 12-x
Subsitute for y
42 = 3x + 5(12-x)
42 = 3x + 60 -5x
Subtract 60
-18 = -2x
9 = x
The person used the pool 9 times.
Answer:
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Step-by-step explanation:
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Range=(-40 C,125 C)
C=5/9(F-32)
-40=(5/9)(F-32)
-72=(F-32)
-40=F
125=(5/9)(F-32)
225=(F-32)
257=F
Range (F)=(-40,257)
-40<F<257
Answer:
t = 5 seconds
Step-by-step explanation:
We have,
Speed of the truck, v = 4 m/s
It is required to find the time taken by a truck to travel 20 meters. It can be assumed that the time is t. Using the formula of speed.
After rearranging, we get :
So, the time taken by a truck to travel 20 meters is 5 seconds.
Answer: 27) C
28) D
Step-by-step explanation:
The solution is in the attached photo