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3 years ago

Explain how you would use equivalent fractions to solve 0.5 + 0.10

2 answers:

8 0

.5 half of a whole so it is 1/2 .10 is 1/10 you want the same number on the bottom part of the fraction (denominator) so covert 1/2 to 5/10 and now you have 5/10 + 1/10 and that is 6/10.

Lelechka [254]3 years ago

6 0

5/10+1/10=6/10, they are equivalent since the denominator is the same :)

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Given that y is directly proportional to x^2 and that y=2 when x=3 find the value of y when x=6

Sergio039 [100]

Answer:y=4/3

y is directly proportional to x^2 is written as

$y \alpha {x}^{2}$ introducing a constant,

y=kx^2

but from the question, when y=2 , x=3 . putting it in the formula to get the value of k

$2 = {3}^{2} \times k$

2=9k . dividing through by 9 to get the value of k

 $\frac{2}{9} = \frac{9k}{9}$ 

 $k = \frac{2}{9}$ 

putting it in the general expression

 $y = \frac{2}{9} x$ 

the value of y when x=6

 $y = \frac{2}{9} \times 6$ 

 $y = \frac{4}{3}$ 

therefore the value of y when x=6 is

4/3

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