2 years ago

billy invests £800 for 5 yerrs in a savings account. by the end of the 5 yers he has received a total of £96 siple interest.

Mathematics

1 answer:

Tresset [83]2 years ago

6 0

Answer:

i font knowwww

Step-by-step explanation:

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This is a problem of guess and check; there's no easier way to do it.But in this case you must have an odd number of nickels to make the 5 cents, so your answer is 9 nickels.you can check this by multiplying each one by .05: 9*.05=.45 the rest of the coins left, are 8 of them, and their dimes. .10*8=.80 .80+.45= 1.25

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We have a piecewise function.
Therefore, to find the function, we must evaluate each domain separately.
We have then:

For $x \leq -2$ :
The function for this domain is:
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For $-2 \ \textless \ x \leq 2$ :
The function for this domain is:
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Where,
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$m = (1 + 7) / (2 + 2)

 m = 8/4

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Substituting:
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For $x\ \textgreater \ 2$ :
The function for this domain is:
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