Answer:
Option C
Step-by-step explanation:
![3\frac{1}{5} \times 2\frac{1}{5}](https://tex.z-dn.net/?f=3%5Cfrac%7B1%7D%7B5%7D%20%5Ctimes%202%5Cfrac%7B1%7D%7B5%7D)
Lets convert it into improper fraction.
![\frac{16}{5} \times \frac{11}{5} = \frac{16 \times 11}{5 \times 5} = \frac{176}{25}](https://tex.z-dn.net/?f=%5Cfrac%7B16%7D%7B5%7D%20%5Ctimes%20%5Cfrac%7B11%7D%7B5%7D%20%3D%20%5Cfrac%7B16%20%5Ctimes%2011%7D%7B5%20%5Ctimes%205%7D%20%3D%20%5Cfrac%7B176%7D%7B25%7D)
Lets convert
into a mixed fraction.
![=> \frac{176}{25} = 7\frac{1}{25} = 7.04](https://tex.z-dn.net/?f=%3D%3E%20%5Cfrac%7B176%7D%7B25%7D%20%3D%207%5Cfrac%7B1%7D%7B25%7D%20%3D%207.04)
Rounding off 7.04 gives 7 and rounding 7 further gives 10.
So , the estimate of the product is 10
This uses the formula d = r * t
First group
========
This group determines the time to be used by both groups.
t = d/r
t = 24 / 6
t = 4 hours hours going there.
t = 24 / 4
t = 6 hours
Total time taken is 6 hours + 4 hours = 10 hours.
Group two
========
t = 10 hours.
d = 48 miles (remember, they have to come back).
r = 48 miles / 10 hours
r = 4.8 miles / hour
For humans, that actually is quite quick.
Answer: 45$
Step-by-step explanation:
Given
Principal ![P=\$500](https://tex.z-dn.net/?f=P%3D%5C%24500)
Rate ![R=6\%](https://tex.z-dn.net/?f=R%3D6%5C%25)
time ![t=18\ \text{months or}\ 1.5\ \text{years}](https://tex.z-dn.net/?f=t%3D18%5C%20%5Ctext%7Bmonths%20or%7D%5C%201.5%5C%20%5Ctext%7Byears%7D)
Simple interest is given by
![\Rightarrow S.I.=\dfrac{P\times R\times T}{100}](https://tex.z-dn.net/?f=%5CRightarrow%20S.I.%3D%5Cdfrac%7BP%5Ctimes%20R%5Ctimes%20T%7D%7B100%7D)
In the question, time is taken in months which is incorrect
Putting values
![\Rightarrow S.I.=\dfrac{500\times 6\times 1.5}{100}=45\$](https://tex.z-dn.net/?f=%5CRightarrow%20S.I.%3D%5Cdfrac%7B500%5Ctimes%206%5Ctimes%201.5%7D%7B100%7D%3D45%5C%24)
Answer:
Is it in a book?
Step-by-step explanation: