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andriy [413]
2 years ago
15

Find the value of the expression 9.18 · z for z = 2.

Mathematics
1 answer:
loris [4]2 years ago
8 0

Answer: 18.36

Step-by-step explanation:

Replace "z" with "2":

9.18 \cdot 2 = \boxed{18.36}.

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The mean length of 6 childrens' big finger is 6.7cm.
yaroslaw [1]

Answer:

New mean length of these 17 people=11.62

Step-by-step explanation:

<em>Step 1: Determine the total length of children's fingers</em>

L=l×n

where;

L=total length (cm)

l=mean length (cm)

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replacing;

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<em>Step 2: Determine the total length of adults fingers</em>

total length of adults fingers=mean length of adults fingers×number of adults

where;

mean length of adults=14.3

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replacing;

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<em>Step 3: Determine the new mean length</em>

new mean length=total length of adults and children fingers/number of adults and children

where;

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replacing;

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