Answer:
10
Step-by-step explanation:
Given is an isosceles triangle and so:
3x + 20 = 5x export like terms to the same side of the equation
20 = 5x - 3x
20 = 2x divide both sides by 2
10 = x
we can use formula
now, we can find a and b
Initially , price is 500
so,
At
now, we can plug back
At
we can use it and find b
now, we can solve for b
and we get
so,
annual depreciation rate is 27.144%.......Answer
Answer:
the dryer costs $425
Step-by-step explanation:
x = washer
y = dryer
x + y = 803
x = y - 47
using the second equation a substitute in the first equation we get
y - 47 + y = 803
2y = 850
y = $425
FYI
x = y - 47 = 425 - 47 = $378
9514 1404 393
Answer:
$7.50
Step-by-step explanation:
The monthly interest rate is 3%/12 = 1/4%. The dollar amount of interest earned in 3 months is ...
I = Prt = $1000(0.0025/mo)(3 mo) = $1000(0.0075) = $7.50