Answer:
John has 12 pokemon cards
Kevin has 60 pokemon cards
Step-by-step explanation:
let x = the # of pokemon cards John has
5x = the # of pokemon cards Kevin has
5x + x = 72
6x = 72
x = 12
5x = 60
7 x 11 + 6 x (11 - 5)
= 77 + 6 x 6
= 77 + 36
= 113 ft^2
The 20 jumbo models will give Blackbird Oil a total storage capacity of 300,000 gallons.
If the ratio is 4:5, it means that the jumbo tanks are 1.25 times larger than the regular ones.
12000 x 1.25 = 15000
Each tank is 15000.
Multiply 15000 by 20 and you have 300000.
Two hundred eighty nine million four hundred fifty two thousand one hundred two and 52 hundredths