Answer:
r= $1.00
Step-by-step explanation:
We know that
if <span>4 electricians can complete a job in 8 hours
then
</span>100% of a job -------> 8 hours
x------------------> 1 hour
x=100/8----> x=12.5%
divide by 4 electricians
12.5%/4-----> 3.125%
that means each electrician can complete 3.125% of a job in 1 hour
therefore
3 electricians-----> 3*3.125%----> 9.375% in 1 hour
so
9.375%-----------> 1 hour
100%--------------> x
x=100/9.375----> x=10.67 hours
the answer is
10.67 hours
Answer:

Step by step explanation:

first we will change the terms with negative superscrips to the other side of the fraction

then we will distribute the superscripts


as when multiplying two powers that have the same base, we can add the exponents and, to divide podes with the same base, we can subtract the exponents


then we will change again the terms with negative superscrips to the other side of the fraction


2000(1+3%)^5
=$2318.548149
If u need the interest you gained then
2318.548149-2000
=$318.548149