Answer:
6 ft longer (total length of 15ft)
Step-by-step explanation:
the initial dimensions are:
length: ![l=9ft](https://tex.z-dn.net/?f=l%3D9ft)
width: ![w=8ft](https://tex.z-dn.net/?f=w%3D8ft)
the area area of the garden is given by:
![a=l*w](https://tex.z-dn.net/?f=a%3Dl%2Aw)
so the original area is:
![a=9ft*8ft=72ft^2](https://tex.z-dn.net/?f=a%3D9ft%2A8ft%3D72ft%5E2)
Since we need the area to be
, and we can only change the length, the width will still be 8ft.
We substitute the value of the new area and the width to the equation for the area:
![a=l*w\\120ft^2=l*8ft](https://tex.z-dn.net/?f=a%3Dl%2Aw%5C%5C120ft%5E2%3Dl%2A8ft)
and we clear for the new length:
![l=\frac{120ft^2}{8ft}\\ \\l=15](https://tex.z-dn.net/?f=l%3D%5Cfrac%7B120ft%5E2%7D%7B8ft%7D%5C%5C%20%5C%5Cl%3D15)
The length of the garden for the area to be
, must be 15ft.
This means that if originally the length was 9 ft, now it has to be 6 ft longer.
To find this answer, multiply 24 and 5
your answer would be 120
ANSWER
![363.6 \: miles](https://tex.z-dn.net/?f=363.6%20%5C%3A%20miles)
EXPLANATION
We were told that the motorist travelled 250 miles on 11 gallons of gas. This implies that,
![250 \: miles \equiv11 \: gallons](https://tex.z-dn.net/?f=250%20%5C%3A%20miles%20%5Cequiv11%20%5C%3A%20gallons)
Now we want to find how far he could go on 16 gallons.
![x \: miles \equiv16 \: gallons](https://tex.z-dn.net/?f=x%20%5C%3A%20miles%20%5Cequiv16%20%5C%3A%20gallons)
All other things being equal, the motorist should cover more than 250 miles with 16 gallons of gas.
Recall that: If more, less divides.
This implies that,
![x = \frac{250 \times 16}{11}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B250%20%5Ctimes%2016%7D%7B11%7D%20%20)
![x = \frac{4000}{11} = 363.6 \: miles](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B4000%7D%7B11%7D%20%20%20%3D%20363.6%20%5C%3A%20miles)
Therefore the correct answer is C.
Answer:
229
Step-by-step explanation:
t10= 2×10^2+3×10-1
=2×100+30-1
=200+29
=229
Answer:
The quickest answer is to take the number 72 and divide it by the rate of interest. In this case, it would take approximately 72/6, or 12 years to double.
Step-by-step explanation: