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3 years ago

how tall are sally and anna if sally is 0.1m taller than anna and their combined height is 3.16 meters

Mathematics

2 answers:

Veseljchak [2.6K]3 years ago

8 0

Set up a simple equation with S FOR SALLY AND A FOR ANNA LOOKS LIKE THIS A+(A+.1)=3.16

nordsb [41]3 years ago

3 0

Anna = a
sally = 0.1 + a
a + s = 3.16
a + 0.1 + a = 3.16
2a = 3.16 - 0.1
2a = 3.06
a = 1.53
s = 0.1 + 1.53
s = 1.63<span />

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Answer:

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See explanation below.

Step-by-step explanation:

For this case we define first some notation:

A= A new training program will increase customer satisfaction ratings

B= The training program can be kept within the original budget allocation

And for these two events we have defined the following probabilities

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We are assuming that the two events are independent so then we have the following propert:

$P(A \cap B ) = P(A) * P(B)$

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$P(B' \cup A')$

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$(A \cap B)' = A' \cup B'$

So then we can write the probability like this:

$P(B' \cup A') = P((A \cap B)')$

And using the complement rule we can do this:

$P(B' \cup A') = P((A \cap B)')= 1-P(A \cap B)$

Since A and B are independent we have:

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$P(B' \cup A') = P((A \cap B)') = 1-P(A \cap B)= 1-0.32=0.68$

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