Woodsydal2390

08.02.2021 • 

Mathematics

Claude Ebair has hired a team of chemists to create the world's longest lasting perfume, which he plans to cal 24/7. On their first attempt, the chemists combined 5 milliliters of a substance containing 2% sandalwood with another substance containing 6% sandalwood to get a substance containing 5% sandalwood. How many milliliters of the substance containing 6% sandalwood must the chemists have used?

Ответ:

bobgardner765

10.03.2021

Mathematics

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15

Step-by-step explanation: I just did it.

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Ответ:

joshualoz5414

14.05.2021

Mathematics

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Hello,
Penny==>a*10 (a is an integer)
Kenny==>b*18 (b is an integer)

a*10=b*18==>a=9*b/5 ==>b=5+n*5
a=9*(5+5*n)/5=9*(1+n)=9+9n
If n=0 then a=9 and b=5 :Number od cards: 9*10=10, 5*18=90
if n=1 then a=19 and b=10: Number of cards: 19*10=190>100 to exclude.

So number of cards=90

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