540 gallons of 90% antifreeze has to be mixed.
<u>Solution:</u>
First, I will set up my table. I will fill in the unknown with variable x.
The table is attached below
From this table, we can easily set up the two equations.
Sum of values of two solutions = Value of mixture
0.9x + 18 = 0.8(x + 90)
0.9x + 18 = 0.8x + 90 x 0.8
0.9x – 0.8x = 72 – 18
0.1x = 54
x = 540
Hence, 540 gallons of 90% antifreeze has to be mixed.
PVAO=820[(1-(1+0.05/2)^(-2*14))/(0.05/2)]
PVAO=16371.21
Answer:
All of the planets in our solar system revolve around one star-our sun.
The sun's gravity holds the planets in place.
Astronomers long ago and today use star charts to map star locations.
Step-by-step explanation:
READ CAREFULLLYYYYYYYY
Answer:
PT = 17
Step-by-step explanation:
Since T is the midpoint of PQ, then
PT = TQ , substitute values
4x + 5 = 8x - 7 ( subtract 4x from both sides )
5 = 4x - 7 ( add 7 to both sides )
12 = 4x ( divide both sides by 4 )
3 = x
Thus
PT = 4x + 5 = 4(3) + 5 = 12 + 5 = 17
Answer:
39,055
Step-by-step explanation:
so you say 6 over 100 multiplied by $36,500 over 1. then 100 into 36,500 then you get 365. then you say 6 multiplied by 365 and you get 2,555. then you say 2,555 plus 36,500 then you get 39,055