Answer:
(D) 
Step-by-step Explanation:
Assuming that the equation 
= p, we can convert the equation into this.
We can convert 
into 9p because × 9 =
Now we simplify this equation.
We can subtract 9p from both sides of the equation.
Re-ordering the equation gets us:
So, (D) is equivalent to the original expression of 
Answer:
20
Step-by-step explanation:
The answer can’t be a negative because of the absolute value. |-3-4| =-7
so you would consider that as 7.
2x7=14
14+6=20
Okay here is a problem answerd using the destributtive property 4(5+5) = 40
1 She has 115 dimes because 0.10*115=11.5 0.25*4=1.00 11.5+1.00=12.5
2 She has 100 dimes because 0.10*100=10.00 and 0.25*10= 2.5 10+2.5=12.5
3 I think they don’t function because quarters are worth more than a dime.
4 She has 40 quarters because 0.25*40=10.00 0.10*25=2.5 10.00+2.5=12.5.
5 She has 38quarters because 0.25*38=9.5 0.10*30=3 9.5+3=12.5
6 Yes they can function because q=dx-12.5
1)we calculate the amount of the drug is left in the body 2 hours after the dose is administered.
t=2
A(t)=14(08)^t
A(t)=14(0.8)²=14(0.64)=8.96
Answer: after of two hours the amount of drug left in te body is 8.96 mg.
2)we calculate the time required to stay in the body 1 mg of drug.
A(t)=1
14(0.8)^t=1
ln [14(0.8)^t]=ln1
ln14+tln(0.8)=0
tln(0.8)=-ln 14
t=-ln 14 / ln (0.8)
t=11.8267...≈11.83
Answer: the time required is 11.83 hours (≈11 hours, 49 minutes, 48 seconds).
