Answer:
$20
Step-by-step explanation:
We are given the percentages of how much she spent on each purchase but we need the percentage of what is left after each purchase. We calculate this by subtracting each percentage from 100% like so.
100% - 40% = 60%
100% - 20% = 80%
100% - 50% = 50%
Next we need to do is change the percentages into decimal format. We do this by moving the decimal 2 digits to the left. Therefore the percentages wasted are the following
60.0% ⇔ 0.60
80.0% ⇔ 0.80
50.0% ⇔ 0.50
Now that we have the percentages in decimal format we can calculate the total price (t) by retracing the spending process. The spending process was following.
So we have to retrace by solving for 
, then 
, and finally (t)
... divide both sides by 0.50
.... divide both sides by 0.20
.... divide both sides by 0.60
Finally we can see that the Total amount of money that Alice had before lunch was $20
Answer: The maturity value is $43743
Step-by-step explanation:
The formula for determining simple interest is expressed as
I = PRT/100
Where
I represents interest paid on the loan.
P represents the principal or amount that was taken as loan.
R represents interest rate.
T represents the duration of the loan in years.
From the information given,
P = 42000
R = 8.3
T = 6 months = 6/12 = 0.5 years
I = (42000 × 8.3 × 0.5)/100 = $1743
The maturity value is the total amount paid after the duration of the loan. It becomes
42000 + 1743 = $43743
Answer:
OOOOOOOOHHH SHUTE BROTHER SORRY WISHED I COULD HELP but im blonde so sowwy
Step-by-step explanation:
Answer: -4.1
Step-by-step explanation:
0.4 - 4.5 = -4.1
