3 years ago

if 5 lemons cost £1 and a bag of 4 oranges cost £1.80, how much more does one orange cost than the lemon?

Mathematics

2 answers:

olga55 [171]3 years ago

8 0

One orange costs 0.45 so a lemon costs 55 cents more than one orange

oee [108]3 years ago

6 0

One lemon cost 20 cents and one orange cost 45 cents then 45-20 is 25 cents

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$n=(\frac{1.960(80)}{25})^2 =246.73 \approx 247$

So the answer for this case would be n=247 rounded up to the nearest integer

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We know that the standard deviation is :

$\sigma = 80$ represent the deviation

The margin of error is given by this formula:

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And on this case we have that ME =25 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

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So the answer for this case would be n=247 rounded up to the nearest integer

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