Asked question twice 16 points + branliest penni saver plans to invest $10,000, part of it in utility bonds paying 9% per year and the rest in a savings account paying 6% per year. how much should be allocated to each investment if the yearly income from the two investments is to be the same? $4,000 in utility bonds and $6,000 in a savings account $3,000 in utility bonds and $7,000 in a savings account $3,500 in utility bonds and $6,500 in a savings account $2,500 in utility bonds and $7,500 in a savings account $4,500 in utility bonds and $5,500 in a savings account

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

where does the z at is it on the x axes or on the y axes any way if it is on the y axes put it horizontally and if it is on the x axes put it vertically

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.

its perfect good job honey

step-by-step explanation:

awesome job girl