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3 years ago

Help me please anyone.......

Mathematics

1 answer:

Nonamiya [84]3 years ago

6 0

Answer:

R = 3.6

A = 2

Step-by-step explanation:

R is inversely proportional to A

....which means that....

; R = k/A.....(where k is a constant that does not change)....

;If R = 12 and A = 1.5....then k = 18..

obtain k,by substituting the values into the equation...k = RA

a) If A = 5....then R = 18/5....

; Ans..., R = 3.6

b) If R = 9....then A = 18/9

;Ans..., A = 2

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I like to organize decimals more than fractions because it's easier for me, so I'm changing each of them to a decimal. You don't have to do this though.

To change a fraction to a decimal, if it is simplified, make it an improper fraction
Then, divide the numerator from the denominator. For example, 1/4 = 0.25 because 1 divided by 4 = 0.25

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13/18 = 0.72 repeating or 0.73 rounded,
5/6 = 0.83 repeating or 0.84 rounded,
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0.40 = 2/5
0.50 = 1/2
0.60 = 3/5
0.67 = 2/3
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2.40 = 2 6/15
2.45 = 2 4/9
2.60 = 2 3/5
2.67 = 2 2/3
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