PLEASE HELP PICTURE SHOWN
2 answers:
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Answer:
22
Step-by-step explanation:
mean is calculated as
mean =
Given the mean of 12 numbers is 20 , then
= 20 ( multiply both sides by 12 )
sum = 240
Given the mean of 8 numbers is 25 , then
= 25 ( multiply both sides by 8 )
sum = 200
Total sum of the 20 numbers = 240 + 200 = 440, then mean of 20 numbers is
mean = = 22
Given that t<span>he
area of the mojave desert is 25,000 square miles and a scale drawing of
the mojave desert has an area of 10 square inches.
The scale of the map is given by
Therefore, the scale of the drawing is 50 : 1.
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The scale of the map is given by
Therefore, the scale of the drawing is 50 : 1.
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