Answer:
£59.02
Step-by-step explanation:
- find the amount of gas used: 6785-6496 = 289
- find the cost of the gas by multiplying the 289 by 13p = 3757p = £37.57
- add the cost of the gas to the fixed delivery charge £37.57+£21.45 = £59.02
Let g represent the number of gallons to be drained. Then the amount (in gallons) of bleach in the tank will be given by
.. 4%*(120 -g) +100%*g = 7%*120
.. 4.8 -.04g +g = 8.4
.. 0.96g = 3.6
.. g = 3.6/0.96 = 3.75
3 3/4 gallons need to be drained and replaced with 3 3/4 gallons of bleach.
Answer:
Yes
Step-by-step explanation:
They get more accurate as they have more data, the more data the more accurate it would be.
Answer:
If you mean how many hours did she practice because it didn't say how long her lessons are then the answer is 14 hours
Step-by-step explanation:
1 3/4 = 1.75
8 times 1.75 = 14