Answer:
He should mix 25 liters of the 30% solution, and 35 liters of 60% solution.
Step-by-step explanation:
In 1981<span>, about $1.1 </span>million was lost due to fires. in 1988, the loss<span> was about $9.6 million - 950063. ... Brainly has millions of high quality answers, </span>all<span> of them carefully moderated by our ... Let's </span>find<span> out, how many </span>percent<span> did it increased. => </span>9.6 million<span> - </span>1.1 million<span> = 8 .5 millions , this amount was the</span>difference<span> => 8.5 million ...</span>
Answer:
1/80 or 0.01234568
Step-by-step explanation:
Exponentiation: (-3) ^ (-9) = -5.08052634253E-5 = -1/
19683
Exponentiation: (-3) ^ 5 = -243
= -1/
19683
* (-243) = -1 · (-243)/
19683 · 1
= 243/
19683
= 1 · 243/
81 · 243
= 1/
81
6.2^2 + b^2 = 8.7^2
38.44 + b^2 = 75.69
b^2 = 37.25
b ≈ 6.1
