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Answer:
The width of the bigger phone is 2.99 in
Explanation:
Given



See attachment for the measure of cell phones
Required
Determine the width of the bigger version (L2)
To do this, we make use of the following equivalent ratios.

This gives:

Express as fractions


Make W2 the subject



They can range from extensive uses of glass, to clustered column styling, filigree scripturwork, ribbed vaulting and tall, pointed spires.
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Given tip, T = $2.00 + (0.1 X C)
where C = cost of meal
Mean of cost of meals, M = $9.00
Standard deviation of meal, Sm = $3.00
If C = M,
Mean of tips Mt = $2.00 + (0.1 X $9.00)
Mt = $2.90, mean of tips
Standard deviation of tips, St = square root of mean of tips
St = ($2.90)^0.5
St = $1.70, standard deviation of tips
Therefore, mean of tips = $2.90 and standard deviation of tips = $1.70