Answer:
A. 17 feet
Step-by-step explanation:
Answer:
The amount is $472.93 and the interest is $22.93.
Step-by-step explanation:
STEP 1: To find amount we use formula:
A=P(1+rn)n⋅t
A = total amount
P = principal or amount of money deposited,
r = annual interest rate
n = number of times compounded per year
t = time in years
In this example we have
P=$450 , r=2.5% , n=2 and t=2 years
After plugging the given information we have
AAAA=450(1+0.0252)2⋅2=450⋅1.01254=450⋅1.050945=472.93
STEP 2: To find interest we use formula A=P+I, since A=472.93 and P = 450 we have:
A472.93II=P+I=450+I=472.93−450=22.93
Answer:
20n
Step-by-step explanation:
Multiply square feet per person times the number of persons to find square feet.
The units analysis looks like this:
Answer:
Step-by-step explanation:
Given that,
Length = (2x+5) cm
Width = (x-1) cm
We need to find the area of a rectangle. The formula for the area of rectangle is given by :
A = lb
So, the required area is equal to .
Answer:
D.) $12n + $8u = 112 ;u = 4 + n
Step-by-step explanation:
Given that :
Cost per new books (n) = $12
Cost per used book (u) = $8
Total revenue earned = $112
store sold 4 more used books than new books
Hence,
Total revenue should be :
Revenue from new books + Revenue from used book = total revenue
Revenue from new books = $12 * n = $12n
Revenue from used books = $8 * n = $8n
$12n + $8u = 112
Number of books sold :
Number of used books sold = 4 + number of new books sold
u = 4 + n