So, there are 3.785 liters to a US gallon, and there are 1.609 km to 1 mile
so, to convert 30 m/g to l/km
![\bf \cfrac{30mi}{1gallon}\cdot \cfrac{1gallon}{3.785L}\cdot \cfrac{1.609km}{1mi}\implies \cfrac{\boxed{?}}{\boxed{?}}](https://tex.z-dn.net/?f=%5Cbf%20%5Ccfrac%7B30mi%7D%7B1gallon%7D%5Ccdot%20%5Ccfrac%7B1gallon%7D%7B3.785L%7D%5Ccdot%20%5Ccfrac%7B1.609km%7D%7B1mi%7D%5Cimplies%20%5Ccfrac%7B%5Cboxed%7B%3F%7D%7D%7B%5Cboxed%7B%3F%7D%7D)
simplify away, cancel units as needed
Answer:
Spanish 18:24
French 4:24
Explanation:
18 out of the 24 students in Mr.Johnson's are studying Spanish and the other 4 of the 24 students are studying French
Answer:
![351\:\mathrm{cm^3}](https://tex.z-dn.net/?f=351%5C%3A%5Cmathrm%7Bcm%5E3%7D)
Step-by-step explanation:
The area of this prism can be found by multiplying the area of the base by the height.
Since this only works if the two bases are the same, let's assign the congruent trapezoids on the front and back of the prism to be the trapezoid's bases.
The area of a trapezoid is equal to the average of its bases multiplied by its height. In this case, the height of each trapezoid is 6 and there are two bases 5 and 8. To find the average of a set of
values, add up all the values of the set and divide by
. Therefore, the average of 5 and 8 is
and the area of the trapezoid is:
![6\cdot 6.5=39\:\mathrm{cm^2}](https://tex.z-dn.net/?f=6%5Ccdot%206.5%3D39%5C%3A%5Cmathrm%7Bcm%5E2%7D)
Now we multiply this by the prism's height (9 cm), to get our final answer:
![39\cdot 9=390-39=\boxed{351\:\mathrm{cm^3}}](https://tex.z-dn.net/?f=39%5Ccdot%209%3D390-39%3D%5Cboxed%7B351%5C%3A%5Cmathrm%7Bcm%5E3%7D%7D)
The first piece is 84 inches and the second piece is 24 inches.
84+28=112
84/28 =3
Both fits the situation and is the correct answer!
Hope this helped! :D