Answer:
$448
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 7%/100 = 0.07 per year,
then, solving our equation
I = 3200 × 0.07 × 2 = 448
I = $ 448.00
USE THE EQUATION Interest= Principal x rate x time
Answer:
1.) 10000, -3, 1000 ; doesn't make sense
2.) 40000, 3, 40000 makes sense
3.) 32500, 1.5, 32500 makes sense
4.) [0,+ ∞ ]
Step-by-step explanation:
1.) r(-3) = 2500 - 3*5000=10000
2.) f(3) = 25000 + 3*5000 = 40000
3.) f(1.5) = 25000 +1.5*5000= 325000
4.) # of siblings must >= 0
Answer: a) Q= 5units
b) R= $75
Step-by-step explanation:
The maximum revenue is at dR/dq = 0
Revenue = price x quantity of demand = p × q
Substituting p = 30- 3q
R = (30-3q) × q
R= 30q- 3q2 (q2 = q raised to the power of 2)
dR/dq = 30- 6q = 0
6q = 30
q= 30/6= 5
q= 5 units
R = pq= 30q- 3q2
R= 30(5) - 3( 5×5)
R= 150- 75
R= $75
Goodluck...
Answer: 942
Step-by-step explanation: this was a tuff one!
X liters of 10% + (30 - x) liters of 22% = 30 liters of 15%
<span>Plugging in the numbers </span>
<span>x(10) + (30 - x)22 = 30(15) </span>
<span>Distribute </span>
<span>10x + 660 - 22x = 450 </span>
<span>Combine like terms </span>
<span>-12x = -210 </span>
<span>Divide both sides by -12 </span>
<span>x = 17.5 </span>
<span>30 - x = 12.5 </span>
<span>17.5 liters of 10% + 12.5 liters of 22% = 30 liters of 15%
THE TRICK IS TO JUST USE ONLY ONE VARIABLE</span>
