Answer:
1131 m^3
Step-by-step explanation:
Formula is π r^2h
then substitute the values r=6,h=10
1130.97
then round the number by nearest tenth.
which is 1131.
Answer:
$28.50
Step-by-step explanation:
Lou needed to add ...
13 - 5.5 = 7.5
gallons to the tank.
The cost of that gas was ...
($3.80/gal)×(7.5 gal) = $28.50
Lou spent $28.50 filling the gas tank.
Write 2 equations 2c +3b = 26.35 and 1.5 c +2b = 18.35. Solve the equations by multiplying the first equation by -2 to get -4c -6b =-52.7 and the second equation by 3 to get 4.5c + 6y = 55.05. Add the equations to solve for c = 4.7 and b = 5.65. Now substitute into the equation 3(4.7) +4(5.65) to find the total cost.
