Answer:
C
Step-by-step explanation:
As properties are preserved
A certain ore contains 21 percent gold. How much ore (in tons) is needed to obtain 882 tons of gold?
Answer:
it would be 4200 ore
Step-by-step explanation:
because 882/.21
what is the cube root of 27/64?
Answer:
⅜
Step-by-step explanation:
We want to find the cube root of 27/64.
∛(27/64)
We know that;
3³ = 27 and 8³ = 64
Thus;
∛(27/64) = ⅜
Suppose a jar contains 14 red marbles and 31 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red. Answer should be in fractional form.
Answer:
P = 91/990
Step-by-step explanation:
first red marble: [tex]\frac{14}{45}[/tex]
second red marble: [tex]\frac{13}{44}[/tex]
The probability
[tex]P=(\frac{14}{45})(\frac{13}{44} )=\frac{(14)(13)}{(45)(44)} =\frac{182}{1980} =\frac{91}{990}[/tex]
Hope this helps