SOLUTION: Tony weighs 8kg more than Dave. Jim is twice as heavy as Dave. Their combined weight is 352kg. Calculate Daves weight as a percentage of Tonys weight to 2dp.

Question 1130641: Tony weighs 8kg more than Dave. Jim is twice as heavy as Dave. Their combined weight is 352kg. Calculate Daves weight as a percentage of Tonys weight to 2dp.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Tony weighs 8kg more than Dave.
t = d + 8
Jim is twice as heavy as Dave.
j = 2d
Their combined weight is 352kg.
t + d + j = 352
replace t and j
(d+8) + d + 2d = 352
4d = 352 - 8
4d = 344
d = 344/4
d = 86 Kg is Dave's weight
Calculate Daves weight as a percentage of Tonys weight to 2dp.
find t
t = 86 + 8
t = 94 kg is Tony's weight
Find the percentage of d to t
* 100 = 91.49%
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