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Gre4nikov [31]
3 years ago
11

A town has 100 homes in it. According to a census, the actual distribution of pets in these homes gives a median of 0.8 pets and

a mode of 1 pet. A student surveys 10 of these homes and finds nearly identical data: a median of 0.7 pets per home with a mode of 1. The student’s small survey gives nearly the same results as the much larger census because the
A) town itself is very small.

B) student simply got lucky.

C) student made a miscalculation

D) variation in the number of pets per house is small.
Mathematics
2 answers:
stellarik [79]3 years ago
6 0
The nest answer would be c> hope this helps 
natulia [17]3 years ago
6 0
The answer is D. I think.
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Kevin and Randy Muise have a jar containing 92 coins, all of which are either quarters or nickels. The total value of the coins
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<span>Let n = the number of nickles
Let q = the number of quarters
Then for your problem we have
(1) n + q = 43 and
(2) 5*n + 25*q = 100*6.95 (always work in cents to avoid decimal numbers) or
(3) 5*n + 25*q = 695
Now substitute n of (1) into (3) and get
(4) 5*(43 - q) + 25*q = 695 or
(5) 215 - 5*q + 25*q = 695 or
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(7) 20*q = 480 or
(8) q = 24
Then using (1) we get
(9) n + 24 = 43 or
(10) n = 19
Let's check these values.
Is (.05*19 + .25*24 = 6.95)?
Is (.95 + 6.00 = 6.95)?
Is (6.95 = 6.95)? Yes
Answer: Kevin and Randy have 19 nickles and 24 quarters in the jar.</span>
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