For the answer to the question above, \
Let
D = Dominic weight
R = Ralph weight
P = Peter weight
We have three unknowns so we should set up three equations. We do as follows:
D = 0.5R
P = 3D
D+R+P = 720
Solving simultaneously we obtain,
D = 120
R = 240
P = 360
<span>So the answer is 120 is the weight of Dominic</span>
A is the answer because I did befor
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➷ Multiply the expressions so they have a denominator of 10
Once you have done this, you can add them
The answer would be option B
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30 percent of 52= 15.6
52.00-15.60= 36.40
$36.40
