3 years ago

Consider the regular octagon below

Mathematics

1 answer:

Shkiper50 [21]3 years ago

6 0

Answer:

can you give me a picture?

Step-by-step explanation:

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Wheel world sold 875 cars last year if the sales this year are 120% of sales last year how many cars will they sell this year

inn [45]

okay so first you wanna turn that 120% into a decimal and the decimal form of that would be 1.2 or 1.20

Secondly you want to multiply 875 by the 1.2

875*1.2 = 1050

So if they sell 120% of last years sales they will sell 1050 cars this year.

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3 years ago

The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.How much rainfall on the seventh d

spayn [35]

Answer:

There was 32.5mm of rainfall on the seventh day.

Step-by-step explanation:

Mean of a data-set:

The mean of a data-set is the sum of all values of a data-set divided by the number of values in the data-set.

The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.

This means that during the week(7 days), the total amount of rain was of:

$6*1 + x = 6 + x$

How much rainfall on the seventh day ?

This is x. We have that:

$\frac{6 + x}{7} = 5.5$

$6 + x = 7*5.5$

$6 + x = 38.5$

$x = 38.5 - 6 = 32.5$

There was 32.5mm of rainfall on the seventh day.

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