3 years ago

What is 48% of 64 please give right answers only

Mathematics

1 answer:

Charra [1.4K]3 years ago

7 0

Answer:

30.72

Step-by-step explanation:

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7x-3y=-12. Name 2 possible answers for (x,y)

anzhelika [568]

Answer:

x = (-12/7 , 0)

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Step-by-step explanation:

Plug y=0 into the equation and solve the resulting equation 7x=−12 for x

7x = -12

/7 /7

x = -12/7 and y =0

Plug x=0 into the equation and solve the resulting equation −3y=−12 for y

-3y = -12

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3 years ago

How long does it take a 2700 dollar investment compounded monthly at 9% to make 500 dollars

valina [46]

Answer:

23 months

Also please note that it's everytime ^t/12 not (^t)/12

Step-by-step explanation:

Principal (P) = $2700

rate = 9%

t = ?

Amount = $P(1+\frac{r}{100} )^(t/12)$

Amount = 2700 +500 = $3200

So substituting all our values we get :

$3200 = 2700(1+\frac{9}{100})^(t/12)\\ 3200=2700(1+0.09)^(t/12)\\3200 = 2700(1.09)^(t/12)\\\frac{3200}{2700} =1.09^(t/12)$

So we use log to solve for t :

$t/12=log_{1.09} (\frac{3200}{2700})\\$

Solving this using a calculator we get:

1.9714966193*12

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Step-by-step explanation:

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