Answer:
Cory bought 6.474 gallons of gasolline.
Step-by-step explanation:
The total cost of gasoline (), measured in dollars, is given by the following expression:
Where:
- Amount of gasoline, measured in gallons.
- Unit cost, measured in dollars per gallon.
Given that and
, the amount of gasoline is cleared and calculated:
Cory bought 6.474 gallons of gasolline.
Answer:
b = 36
Step-by-step explanation:
Assuming this is a right triangle with hypotenuse = c and legs a and b
Then using Pythagoras' identity.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
a² + b² = c², and substituting values
15² + b² = 39², that is
225 + b² = 1521 ( subtract 225 from both sides )
b² = 1296 ( take the square root of both sides )
b = = 36