Answer:
$4300.
Step-by-step explanation:
Let x represent amount of money invested in each account.
We have been given that equal amounts are invested in each of three accounts paying 7%, 9%, and 12.5%, one years combined interest income is $1,225.5.
We will use simple interest formula to solve our given problem.
, where,
I = Amount of interest after t years,
P = Principal amount,
r = Annual interest rate.
Since principal for each amount is equal and time is equal to 1 year, so we can represent our given information in an equation as:
Therefore, an amount of $4300 is invested in each account.
Answer:
181 
Step-by-step explanation:
To find how many hours they work per month multiply the amount of hours they work each day by the amount of days they work in a month:
They work 
hours per month.
Hope this helps :)
The main formulas of log are:
log A + logB =log A*B
log A - logB =log A/B
log A ^p= p logA
so
log_4(7)+log_4(5)=log_4(7*5)=log_4(35)<span>
log_8(11)-log_8(5)=log_8(11/5)
2log_9(3)=log_9(3)²</span>
Bus = 1.25d + 42
Car = 3d
3d = 1.25d + 42 [solving for days]
1.75d = 42
d = 24
under 24 days, Driving will cost less
over 24 days, Bus will cost less.
Answer:
Step-by-step explanation:
1/2b+8b+(-b) = 7 and 1/2 b
(-9)+(-7) +14 = -2
so the answer is: 7 1/2b -2
