3 years ago

How do I use benchmark fractions

1 answer:

5 0

Compare fractions using a benchmark fraction. Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions refer to the same whole.

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photoshop1234 [79]

Answer:

Step-by-step explanation:

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3 years ago

What is the sum of the geometric series 2^0 + 2^1 + 2^2 + 2^3 + 2^3 + 2^4 + … + 2^9?

GREYUIT [131]

Sum is
$S_{n}=\frac{a_{1}(1-r^{n})}{1-r}$

r=common ratio
a1=first term
it looks like 2^0=1 is the first term aka a1
it goes to the 9th term (2^9)

sub
$S_{9}=\frac{1(1-(2)^{9})}{1-2}$
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Dafna1 [17]

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3 years ago

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Y/20=x I need help on how to solve and the answer!

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