Answer:
-7
Step-by-step explanation:
3m-4=5m+10
-2m-4=10
-2m=14
m=-7
He worked a total of 405 minutes. Hope this helps!
Step-by-step explanation:
4√2+ 7√2 - 3√2 = (4 + 7 - 3)√2 = 8√2
Topic: Indices and Surds
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<span>W = event where white marble is drawn
B = event where black marble is drawn
The two events W and B are independent. This is because the marble taken out on the first draw is put back into the bag. Since W and B are independent, we can use this rule
P(W and B) = P(w)*P(B)
Use the rule to get
P(W and B) = P(W)*P(B)
P(W and B) = (1/2)*(1/4)
P(W and B) = (1*1)/(2*4)
P(W and B) = 1/8
1/8 is equivalent to 0.125. Use long division or a calculator
0.125 = 12.5% </span>
