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Dmitry_Shevchenko [17]
3 years ago
15

Find the value of o.81 dividing o.o9 plus o.81 dividing nine my entire math grades depend on this please help me

Mathematics
1 answer:
tankabanditka [31]3 years ago
4 0

Answer:

i believe its 9.09

Step-by-step explanation:

i did this problem 3 different ways

first i put it all in a calculator and got 9.09

then i did 0.81/0.09 = 9+ 0.81 = 9.81/9 = 1.09

finally i did 0.81/0.09 = 9    0.81/9 = 0.09

9+ 0.09 = 9.09

therefore 9.09 is what i believe the answer is

i hope this helps you!

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b = price of the laptop

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\bf \begin{cases}&#10;\boxed{b}=a+250\\&#10;0.085a+0.05b=296\\&#10;----------\\&#10;0.085a+0.05\left( \boxed{a+250} \right)=296&#10;\end{cases}&#10;\\\\\\&#10;0.085a+0.05a+12.5=296\implies 0.135a=283.5&#10;\\\\\\&#10;a=\cfrac{283.5}{0.135}\implies a=2100

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