the probability of gtting someone in the 18- 21 age bracket on someone who agreed to respond = 86/341 = 1/A an pencentage = 1/4 x 100 = 25
Hope it helps
Answer:
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Step-by-step explanation:
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<span>N = N0 e^(-kt)
for half life N/N0 = 1/2 and k = 0.1459
1/2 = e^(-0.1459t)
=> -0.1459 t = ln(0.5)
t = - ln(0.5) /0.1459
= 4.8 days </span>
Answer:
20% decrease
Step-by-step explanation:
Calculate Percent Decrease:
((Original - new) ÷ original) * 100
Substitute into formula
((2.5 - 2) ÷ 2.5) * 100
Simplify
(.5 ÷ 2.5) * 100
.2 * 100
20% decrease
Hope this helps :)
Answer:
7x - 3y = -34
7x - 3(2) = -34
7x - 6 = -34
7x - 6 + 6 = -34 + 6
7x = -28
7x/7 = -28/7
x = -4
7(-4) - 3y = -34
-28 - 3y = -34
-28 + 28 - 3y = -34 + 28
-3y = -6
-3y/-3 = -6/-3
y = 2
(-4, 2)
Step-by-step explanation:
