10 pounds of walnuts cost $50. how much does 1 pound of walnuts cost? find the constant of proportionality. question 5 options: 50/10 = 5. one pound of walnuts costs $5. the constant of proportionality is 5. 10/50 = .2. one pound of walnuts costs $0.20. the constant of proportionality is 0.2. 10 * 50 = 500. one pound of walnuts costs $500. the constant or proportionality is 500. 10 * 1 = 10. one pound of walnuts costs $10. the constant or proportionality is 10.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

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