Pemdas, so exponent before multiply
so do a^-1/2 then multiply it by 2
remember that![x^ \frac{m}{n}= \sqrt[n]{x^m}](https://tex.z-dn.net/?f=x%5E%20%5Cfrac%7Bm%7D%7Bn%7D%3D%20%5Csqrt%5Bn%5D%7Bx%5Em%7D%20%20)
and
therefor,
the we multiply by 2
so do a^-1/2 then multiply it by 2
remember that
therefor,
the we multiply by 2
A bag contains yellow marbles and red marbles, 19 in total. The number of yellow marbles is 5 less than 3 times the number of re
d marbles. How many yellow marbles are there?
1 answer:
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