3 years ago

Peter and John went shopping and spent money in the ratio 2 : 3 (a) If Peter spent 500 dollars, how much did John spend?

Mathematics

2 answers:

brilliants [131]3 years ago

6 0

I think john spent 750 dollars but am not sure

SVEN [57.7K]3 years ago

3 0

Answer:

john spend $750

i hope this helps :)

i did the math ;-;

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Radium-226 is a metal with a half-life of 1600 years. If you start with 1 kilogram of radium-226, how much will remain after 20,

erica [24]

Ending Amount = Beginning Amount / 2^n
where 'n' = # of half lives
n = 20,000 / 1,600 = 12.5 half-lives

Ending Amount = 1 kg / 2^12.5
Ending Amount = 1 kg / <span> <span> <span> 5,792.6
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6 0

4 years ago

(3x - 2)³= <br>gives the solution pls.

Nonamiya [84]

Answer:

27x^3 - 54x^2 + 36x - 8

Step-by-step explanation:

(3x - 2)^3

= (3x - 2) (3x - 2) (3x - 2)

= 27x^3 - 54x^2 + 36x - 8

Hope this helps :)

Let me know if there are any mistakes!!