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
The main thing you need to know for this question is this conversion:
1 L = 1000 mL , or 1 liter is equal to 1000 milliliters.
So, let's make the entire problem into milliliters:
The carton of milk has 2,500 mL, and Zoe drinks 500 mL a day (250 twice a day).
To find the number of days the bottle will last, you divide the total amount of milk by the amount she drinks per day:
2,500 / 500 = 5 days
Answer:
the answer is 31.29
Step-by-step explanation:
<h3>
Answer: $130</h3>
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Explanation:
I'm assuming the bank is using simple interest (instead of compound interest).
If so, then,
i = P*r*t
i = 8000*0.0325*0.5
i = 130
The amount of interest is $130
In the formula above, I used
- P = 8000 = amount deposited
- r = 0.0325 = annual interest rate in decimal form
- t = 6/12 = 0.5 years, which means you don't use t = 6. We don't use t = 6 because the interest rate is on an annual basis, and not a 6-month basis.
The formula of a volume of a rectangular prism: V = lwh
l - length
w - width
h - height
We have the volume:
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