four planets A,B,C and D are orbiting a star.A weights 0.2 times as much as B does while C weights 1.2 times as much as D does and four times as much as B does. Find the ratio of the weight of A to D, both as a fraction and as a decimal.
Answers
Answered by
0
Answer:
Fractional form = 3/50
Decimal form = 0.06
Step-by-step explanation:
Given A = 0.2 times B = 0.2B
C = 4 times B = 4B
C = 1.2 times D = 1.2D
therefore D = C/1.2
Let B = X
so A = 0.2x
Ratio of A to D
A:D = 0.2x : C/1.2
A/D = 0.2x * 1.2 / 4x
A/D = 2.4 x / 4 x
A/D = 0.6/10
A/D = 0.3/5
A/D = 3/50
Fraction form = 3/50
Decimal form = 0.06
Answered by
0
Answer:
0.06
Step-by-step explanation:
A = 0.2 B
C = 1.2 D = 4B
which gives 4B = 1.2D, hence B= 0.3 D
substituting B = 0.3D in first equation
A = 0.2 × (0.3D)
= 0.06 D
A:D = 0.06 = 6/100
I'm not sure if my answer is correct or not
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