This is due today and NO LINKS

Mathematics

2 answers:

Alex73 [517]2 years ago

7 0

7. 3/5 I DONT KNOW SORRYYYY

Anna35 [415]2 years ago

4 0

Answer:

5. no, because each number isn't given the same amount of space. this means other numbers have a higher probability of being spun than others.

6. yes, because a cube has 6 sides so each number will have an equal probability of being rolled.

7. 12%

8. he's less likely to pull a blue one from the bag of 250 because there's a smaller percentage of blue in the bag of 250 than the bag of 25.

Step-by-step explanation:

7. 3/25 = 0.12 = 12%

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An experienced carpenter can frame a house twice as fast as an apprentice. Working together, it takes the carpenters 2 days. How

AleksAgata [21]

Answer:

6 days

Step-by-step explanation:

Let the time taken by Carpenter working alone = $C$ days

Then time taken by apprentice alone = Twice as that of taken by Carpenter = 2 $C$ days

Time taken working together = 2 days

Work done in one day working together = $\frac{1}{2}$

Work done in one day by Carpenter working alone = $\frac{1}{C}$

Work done in one day by apprentice working alone = $\frac{1}{2C}$

Work done in one day by Carpenter working alone + Work done in one day by Carpenter working alone = $\frac{1}{C}$ + $\frac{1}{2C}$ = Work done in one day working together = $\frac{1}{2}$

$\dfrac{1}{C}+\dfrac{1}{2C}=\dfrac{1}{2}\\\Rightarrow \dfrac{2+1}{2C}=\dfrac{1}{2}\\\Rightarrow C = 3\ days$