An element with a mass of 890 grams decays by 19.7% per minute. To the nearest tenth of a minute, how long will it be until ther
e are 220 grams of the element remaining?
2 answers:
Answer:
3 minutes
Step-by-step explanation:
Answer:
6.4
Step-by-step explanation:
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Step-by-step explanation:
7/20
=0.35
35%
=35/100
=0.35
Hence, 7/20=35%
The answer is not applicable. theres not enough information. -fvmousskaylaa
Answer:
um idk but thanks for the points
C. 1/12
The answer should be C. 1/12.
Answer:
(20+x)*2=x-6
40+2x=x-6
40=-x-6
46=-x
check:
x=-46
20-46*2=-46-6
-26*2=-52
-52=-52
x=-46
