4096
(4^3)(4^4) = 4n
16384 = 4n
4n = 16384
4n/4 = 16384/4
n = 4096
The answer is the last one (15+6)+3
Log6(5-2a/3a)=1
6^1=(5-2a/3a)
6(3a)=5-2a
18a=5-2a
20a=5
a=1/4
Answer:
60 ml of 40% saline and 90 ml of 15% saline
Step-by-step explanation:
We can call the amount of 40% solution x and the amount of 15% solution y.
x + y = 150 -- (1)
0.40x + 0.15y = 150 * 0.25 -- (2) --- 150 * 0.25 = 37.5
40x + 15y = 3750 (Multiply (2) by 100 to get rid of decimals)
15x + 15y = 2250 -- (3) (Multiply (1) by 15)
25x = 1500 (Subtract (3) from (1)
x = 60
y = 150 - 60 = 90
Answer: 14.29 or rounded up to 15%
Step-by-step explanation:
525 - 450 = 75
You need at least $75 off the price to have enough money.
75/525 = x/100
Solve for X
75 * 100 = 7500
7500/525 = 14.2857143
If answer should be a whole percentage you would need the discount to be 15% in order to not fall short on funds.