9873 - 9586 = 287 units used cost is 287 * 27.2 = 7806.4 p= 78.06 + standing charge of 12.40 <span> total gas 80.46 Jayne's share 26.16 (because they have to pay part of a penny, so round up) </span> <span>electricity </span> <span>3542 - 3187 = 355 units used cost 355 * 7.1 2520.5 p = 25.21 + standing charge of 9.10 </span> <span> total electricity 34.31 Jayne's share 11.44 (because they have to pay part of a penny, so round up) </span> <span>Rent * 3 months = 540 * 3 = 1620 Jayne's share 1620 / 3 = 540 </span> <span> total cost 3 months for Jayne </span> <span>540 + 11.44 + 26.16+ 54 = 631 pounds 60 pence</span>
The volume of a cone is V= (1/3)pi r²h it was given h=12cm radius=3cm the volume of the first cone is V1= 1/3)pi r²h1 where h1= h/2=6cm so its volume is V1=1/3)xpix3²x6=56.52cm^3
and since the two cones are identical so V1=V2=<span>56.52cm^3, we need </span><span>56.52cm^3 or salt </span>
