step 1
<u>Find the number of miles run by each bus in one day</u>
we know that
speed=distance/time
distance=speed*time
distance=(15 mi/h)*3 h=45 miles
<u>Find the number of miles run by the total buses in one day</u>
Multiply by 300
300*45=13,500 miles
<u>Find the number of miles run by the total buses in 22 days</u>
13,500*22=297,000 miles
step 2
<u>Find the number of gallons to run 297,000 miles</u>
we know that
the fuel economy of the buses is 10 mi/gal
so
by proportion

step 3
<u>Find the cost of 29,700 gal of gasoline</u>
we know that
the gasoline costs $4.10 per gallon
then
29,700*4.10=$121,770
therefore
<u>the answer is</u>
the cost of the gasoline is $121,770
(2n + 5k)^2 = (2n + 5k)(2n + 5k)
Here we need to use FOIL
First - 2n * 2n = 4n^2
Outside - 2n * 5k = 10nk
Inside - 5k * 2n = 10nk
Last - 5k * 5k = 25k^2
That gives us 4n^2 + 10nk + 10nk + 25k^2, we can combine 10nk + 10nk to give 20nk, and a final equaion of 4n^2 + 20nk + 25k^2
Answer:
B
Step-by-step explanation:
Answer:
4/49
Step-by-step explanation:
7-5 = 2
2/7*2/7 = 4/49
Answer: 100 square cm
Step-by-step explanation: the triangle is 33 cm and the big rectangle is 9x7 square cm. There is a small square that is 2x2 =4 cm so the total is 33 +63 + 4 which is 100 cm.