Answer:
Step-by-step explanation:
add all student to get total.
30+28+14+28=100 total students
28+14+28=70 students that do not supprt ashley.
70/100 is the probability the student chosen at random will not support ashley.
.7 in simplified decimal format.
Answer:
It takes 75 years for the investment to quadruple in value
Step-by-step explanation:
Simple Interest
This is a simple interest problem.
The simple interest formula is given by:

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.
After t years, the total amount of money is:

In this question:
4% simple interest per year, so I = 0.04.
Quadruple:
t when T = 4P.
The interest earned is:



Now we find the time.





It takes 75 years for the investment to quadruple in value
Answer:
(7a-3a)+(2a-a)=16
4a+a or 1a =16
5a=16
5a/5=16/5
a =16/5 or a=3.2
Step-by-step explanation:
solving like terms or substract are same
you only have to find value of uknown value which was "a" question
Answer:heya
Step-by-step explanation:
it is in the form... a raise to the power n / a raise to the power m = a raise to the power n-m..........
so 9 raise to the power 2/9 raise to the power 7= 9 raise to the power(2-7)
=9 raise to the power -5
=1/9 raise to the power 5
hope it helps