2 years ago

7. Juan borrows $115 from his parents for a new cell phone. He agrees to pay his parents back the

1 answer:

5 0

I think the answer would be $119.60.

you start by doing 115*.02=2.3. this means that every year, juan will have to pay an extra $2.3. you then multiply 2.3 by 2, since it’s taking 2 years, getting 4.6. if you do 115+4.6, you get your total of $119.60. im pretty sure that should be correct. :-)

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2 years ago

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Sonja [21]

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Step-by-step explanation:

$c_1 = 1 \\ \\ c_n= - 2c_{n-1}+5 \\ \\ c_2 = - 2c_{2-1}+5 \\ \\ c_2 = - 2c_{1}+5 \\ \\ c_2 = - 2(1)+5 \\ \\ c_2 = - 2+5 \\ \\ \huge \purple{c_2 =3} \\ \\ c_3 = - 2c_{3-1}+5 \\ \\ c_3 = - 2c_{2}+5 \\ \\ c_3 = - 2(3)+5 \\ \\ c_3= - 6+5 \\ \\ \huge \red{ c_3 = - 1}$