Answer:
45
Step-by-step explanation:
we know the number is two digits.
we know that the sum of the digits is 9
therefore, the only possible numebrs are:
18, 81
27, 72
36, 63
45, 54
we also know that the inverse of the digits is the original number plus nine
therefore, 18 and 81 are out
27 and 72 are out
36 and 63 are out
the only numbers left are 45 and 54.
since 45+9=54, the number is 45.
Answer:
5 months
ROI = 3.75 %
Step-by-step explanation:
Since,
The simple interest formula,
Where,
P = Principal amount,
r = rate per period ( in decimal )
t = number of periods,
Here, P = 800, r = 9% = 0.09,
If A is the future amount,
We have, A = 830
I = A - P = 830 - 800 = 30
By substituting the values in the above formula,
Hence, it will take 5 months. ( 1 year = 12 months )
Now,
Answer:
The total commission is $8905
Step-by-step explanation:
The commission on first $80000 = 2%
The commission on next $80000 = 4%
The commission on the sales of more than $160000 = 5%
Now we have to calculate the total commission on the amount of $242100. Let divide the amount in three parts, $80000 + $80000 + $82100 = 242100
Now total commission = $80000×2% + $80000 ×4% + $82100×5%
Total commission = $8905
<span> 2(11 + y) = 22 + 2y ...expand by using distributive property
hope it helps</span>
There is a lot to go over here. Unfortunately it looks like you got a lot incorrect. I'll focus on two problems. Hopefully these examples below will help correct the other mistakes.
---------------------------------------------------------
Problem 7)
We have the starting value be 20 and the ending value be 11. Subtract the values: (end)-(start) = 11 - 20 = -9. The negative indicates we have a drop or decrease.
We'll focus on the positive version of this number, so 9. Divide this value over the starting amount 20 to get 9/20 = 0.45 = 45%
So going from 20 miles to 11 miles is a decrease of 45%
Answer to problem 7 is: 45%
---------------------------------------------------------
Problem 13)
An increase of 300% means we added 3 times the original amount onto the original amount.
We take 300% of 25 to get 3*25 = 75
Which is then added onto 25 to get 25+75 = 100
Answer to problem 13 is: 100