Solve for y is answer
2x+3y=1470
minus 2x from both sides
3y=-2x+1470
divide both sides by 3
y=-2/3x+490
Answer:
0.7633
Step-by-step explanation:
Proportion of the population that is contaminated = P = (4/17) = 0.235
We now need to find the probability that not more than 1 of the 4 bottles tested is contaminated. This is a binomial distribution problem.
Binomial distribution function is represented by
P(X = x) = ⁿCₓ pˣ qⁿ⁻ˣ
n = total number of sample spaces = number of bottles to be tested = 4
x = Number of successes required = 0, 1
p = probability of success = probability that a bottle is contaminated = 0.235
q = probability of failure = probability that a bottle is NOT contaminated = 1 - 0.235 = 0.765
P(X ≤ 1) = P(X=0) + P(X=1) = 0.34248830063 + 0.4208352975 = 0.7633235981 = 0.7633 to 4 d.p
Hope this helps!!!
I think the answer would be 4 cakes because they would have bought 6 pies for it to cost $42 and then the extra $40 which will be converted to 4 cakes. So the answer is 4. Hope I helped.
