Solution = 2(-3)^2 + 9
= 18 + 9
= 27
i am a mathematics teacher. if anything to ask please pm me
Based on gas laws:
PV/T = Constant, P = Pressure, V = volume, T = Temperature (K)
Therefore,
P1V1/T1 = P2V2/T2
P1 = 10 psig
V1 = 10 in^3
T1 = 65°F = 291.483 K
P2 = ?
V2 = 1.5 in^3
T2 = 180°F = 355.372 K
Rearranging the equation,
P2 = P1V1T2/T1V2 = (10*10*355.372)/(291.483*1.5) = 81.279 psig
There isn't anything attached
50 points decreased by 26% is 37, because to find the percentage, all you have to do is multiply the number you are trying to decrease the percentage of, and take the percentage as a decimal form and multiply the two. Then, you have to subtract that number from the base to get your final answer. :)
