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2 years ago

Need help on answer I’m not so sure what to do

Mathematics

2 answers:

ratelena [41]2 years ago

7 0

You divide four dhndhdhdjdjdjdjjd

Bess [88]2 years ago

6 0

45.84 pounds

OK. This problem isn't that hard if you just take it in pieces.
First, calculate how much oil Mr Leonard needs to buy. That will be the capacity of his oil tank minus how much oil is already in it. So

1200 litres - 450 litres = 750 litres

Now figure out how much that 750 litres of oil will cost at full price.

750 litres * 81.5 p/litre = 61125 p

Now, calculate how much is 7.5% of 61125 p

7.5% * 61125 p = 0.075 * 61125 p = 4584.375 p

Finally, since there's 100 pence in a pound, divide the number of pence saved by 100. So
4584.375 p / 100 = 45.84 pounds

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2 years ago

A television sports commentator wants to estimate the proportion of citizens who "follow professional football." Complete parts

masha68 [24]

Answer:

626 and 654

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Given that a television sports commentator wants to estimate the proportion of citizens who "follow professional football."

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p = 0.48

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Sample size should be >626

Part II:

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Margin of error = $2.045*\sqrt{\frac{0.5}{\sqrt{n} } } 654$

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a and b are too close because 0.46 proportion is close to part b proporti0n 0.5

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2 years ago

Kristin owns a bakery called Kristin's Cakes n' Such and is considering lowering the price of her cakes. Kristin polls her custo

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2 years ago

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