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mrsroberts210
28.10.2021 •
Mathematics
What is dividing fractions
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Ответ:
Dividing fractions is simply: Dividing Fractions
Like for example:
5/8 divided by 2/8 = ?
I learned this:
KCF (Keep, Change, Flip)
5/8 you keep.
Change division to multiplication
Flip 2/8 to 8/2, then multiply.
5/8 x 8/2 = 40/16 = 2 8/16 or 2 1/2.
Step-by-step explanation:
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Ответ:
The simplest way I can describe dividing fractions is like multiplying fractions but upside down.
Example:
1/2 ÷ 1/3
To do this, the easiest way is to "flip" the second fraction.
It then becomes:
1/2 × 3/1
Then you just multiply across and you get a product of 3/2 or 1 1/2
Ответ:
h(x) = 2^(2 - x).
Step-by-step explanation:
h(x) = a.b^x
At h(1)
h(1) = a.b^1
h(1) = ab
Since h(1) = 2, then
2 = ab
ab = 2eqn 1
At h(0)
h(0)= a.b^0
h(0) = a.1
h(0) = a
Since h(0) = 4, then
4 = a
a = 4eqn 2
So we subtitle for b in eqn 1.
I.e
ab = 2 , where a = 4 from eqn 2
ab = 2
= 4b = 2
b = 2/4 = 1/2
Therefore:
h(x) = a.b^x
Since we have value for a and b.
h(x) = 2².(1/2)^x
h(x) = 2².(2^(-1))^x
h(x) = 2^2.2^(-x)
h(x) = 2^(2 - x).
Check attachment for further clarity