Share $180 among Tom, Frank and Mary so that each of the boys receives twice as much as Mary.
i) what is the amount received
ii) express mary's share as a fraction of the total amount
10 POINTS> PLEASE HELP ME!!!!
i) what is the amount received
ii) express mary's share as a fraction of the total amount
10 POINTS> PLEASE HELP ME!!!!
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So we'll call Mary's share X.
Tom gets 2X, Frank gets 2X, and Mary gets X. Add them all up, and we have to get to $180.00.
So 2X + 2X + X =180
5X = 180
X = $36.
So Mary gets $36, Tom gets $72, and Frank gets $72. Mary gets 1/5 of the total.
Tom gets 2X, Frank gets 2X, and Mary gets X. Add them all up, and we have to get to $180.00.
So 2X + 2X + X =180
5X = 180
X = $36.
So Mary gets $36, Tom gets $72, and Frank gets $72. Mary gets 1/5 of the total.
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Tom's Share = 2 * Mary's share
Frank's Share = 2 * Mary's share
So...
Total = 2 * Mary's share + 2 * Mary's share + Mary's share
= 5 * Mary's share
180 = 5 * Mary's share
Mary's share = 180/5
Mary's share = $36
Tom and Frank both get: $36 * 2 = $72
Mary's share is 1/5 of the total amount.
36/180
Frank's Share = 2 * Mary's share
So...
Total = 2 * Mary's share + 2 * Mary's share + Mary's share
= 5 * Mary's share
180 = 5 * Mary's share
Mary's share = 180/5
Mary's share = $36
Tom and Frank both get: $36 * 2 = $72
Mary's share is 1/5 of the total amount.
36/180