It says Sandeep has twice as much as Sonia. Thus, let Sandeep's amount be 2x and Sonia's amount be x.
Now, together they have 150.
Thus, the equation;
x+2x=150
Now let's solve the equation;
3x=150
x=150/3
x=50
Thus, Sonia has 50
We have been given that a of sofa prices are normally distributed with a mean of 2500 dollars and a standard deviation of 200 dollars. A leather sofa has a price of 2410 dollars. We are asked to find the proportion of sofa prices that are higher than the price of the leather sofa.
First of all, we will find the z-score corresponding to sample score 2410.




Now we need to find area under normal curve that is greater than z-score of
that is
.
Using formula
, we will get:

Now we will find area under curve using normal distribution table.


Upon rounding to 4 decimal places, we will get:

Therefore, approximately 0.6736 of sofa prices are higher than the price of the leather sofa.
Answer: F and H I think are vertical
Step-by-step explanation:
I'm sorry i couldn't help you
1900*4%
1900*0.04
76 (interest for a year)
76*3/4 (3/4 because 9 months is 3/4 of a year)
57 (9 months interest)
Margo will pay $57 in interest
You subtract the like terms, don't forget to distribute the subtraction sign, its 7x2+5x