Since we are given that the student has a brand Y phone, they are one of a sample of only 580 students. Since 80 of those students also own a brand X (they own both) the probability that the random student is one of those is 50/580 = 5/58 = 8.62%
Answer:
Step-by-step explanation:
This is a system of equations problem
Since the y's are equal to each other, all you have to do is subtract the equations from each other.
Subtract:
16x-10x= (-10)-(-13)
6x=3
Divide 6 from both sides:
x=1/2
Answer:
5 pizza slices and 4 drinks
Step-by-step explanation:
If each pizza slice costs $4 then 4*5 is $20 and then if each drink costs $2 then 4*2 is $8 which adds up to $28
Answer: y= -5/7 x + 1/7
Step-by-step explanation:
Answer:
=705.79
Step-by-step explanation:
F=P(1+i)n where F is the Future amount P is the Present amount/Capital i is the interest rate n is the number of periods.
In this case you have the given as follows:
P = $500 i = 9% n = 4 years
Substituting the values to the formula you'll have:
F=500(1+0.09)^4
<u>=705.79</u>