Answer:
x = 40
Step-by-step explanation:
3x + (x+20) = 180
Answer:
54 km per hr
270 km
Step-by-step explanation:
1 metre per second is 3.6 km per hour.
15*3.6=54 km per hour
distance covered in 5 hrs=54*5=270 km
Answer:
1/6
Step-by-step explanation:
36=6^2
(6^3)^1/2
The amount of heat lost by the water is 1870 calories
Step-by-step explanation:
The amount of heat released by a substance is given by the equation

where
Q is the amount of heat lost
m is the mass of the substance
C is the specific heat capacity of the substance
is its change in temperature
In this problem, we have:
m = 85 g is the mass of water
is the specific heat capacity of water
is the change in temperature of the water
Substituting, we find

Learn more about heat:
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