<u>1 3/10 Because 4/5+2/10= 1 plus 6/20 [3/10] is 1 3/10</u>
Considering the ballon to be spherical
It's volume is given by 4/3(π r^3) by differentiating volume with respect to time we get rate of change of volume hence,
4πr^2(dr/dt)=600÷60=10
Substituting r=30cm
4π(30)*(30)(dr/dt)=10
dr/dt=rate of increase in bullion's radius=1/(360π)cm/s
Answer:
4
Step-by-step explanation:
add the numbers up
you get 64
one pound is 16 ounces so divide 64 by 16 and you get four pounds
