3(5j+4)
15j+12
final answer 15j+12
Answer:
its the same as increasing x by 5 percent
Answer:
Using the Law of Diminishing Marginal Utility, Jane would not be better off buying one more fry, since the marginal utility she obtains from the fries are lower when compared to the chicken sandwich; therefore, she would be better off ordering another chicken sandwich
About 348 hours. Hope this helps you out!
The average speed of the plane between Austin and Dallas is 232 kmph
<u>Solution:</u>
Given that,
Total distance traveled by airplane = 290 km
Time taken for travel between Austin and Dallas = 1 hour 15 minute
Let us convert the time taken to hours
![\begin{array}{l}{1 \text { minute }=\frac{1}{60} \text { hours }} \\\\ {15 \text { minutes }=\frac{15}{60}=\frac{1}{4}} \\\\ {\text { 1 hour } 15 \text { minutes }=1 \frac{1}{4} \text { hours }=\frac{1 \times 4+1}{4}=\frac{5}{4} \text { hours }}\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bl%7D%7B1%20%5Ctext%20%7B%20minute%20%7D%3D%5Cfrac%7B1%7D%7B60%7D%20%5Ctext%20%7B%20hours%20%7D%7D%20%5C%5C%5C%5C%20%7B15%20%5Ctext%20%7B%20minutes%20%7D%3D%5Cfrac%7B15%7D%7B60%7D%3D%5Cfrac%7B1%7D%7B4%7D%7D%20%5C%5C%5C%5C%20%7B%5Ctext%20%7B%201%20hour%20%7D%2015%20%5Ctext%20%7B%20minutes%20%7D%3D1%20%5Cfrac%7B1%7D%7B4%7D%20%5Ctext%20%7B%20hours%20%7D%3D%5Cfrac%7B1%20%5Ctimes%204%2B1%7D%7B4%7D%3D%5Cfrac%7B5%7D%7B4%7D%20%5Ctext%20%7B%20hours%20%7D%7D%5Cend%7Barray%7D)
<em><u>The average speed is given as:</u></em>
![\text { Average speed }=\frac{\text { total distance }}{\text { total time taken }}](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Average%20speed%20%7D%3D%5Cfrac%7B%5Ctext%20%7B%20total%20distance%20%7D%7D%7B%5Ctext%20%7B%20total%20time%20taken%20%7D%7D)
Plugging in the values, we get,
![\text { Average speed }=\frac{290}{\frac{5}{4}}=\frac{290}{5} \times 4=232](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Average%20speed%20%7D%3D%5Cfrac%7B290%7D%7B%5Cfrac%7B5%7D%7B4%7D%7D%3D%5Cfrac%7B290%7D%7B5%7D%20%5Ctimes%204%3D232)
Hence the average speed is 232 kmph