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05.12.2021 •
Mathematics
Adrian, Ben and Charlie share some sweets in the ratio 7.4.11 Charlie got 52 more sweets than Adrian. Work out the total amount of sweets.
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Ответ:
286 sweets.
Step-by-step explanation:
If Adrian had x sweets, Charlie got x+52 sweets.
The number of parts is 7+4+11 = 22.
So Adrian had 7/22 of the total and Charlie had 11/22 = 1/2 of the total.
This means that Ben had 4/22 = 2/11 of the total.
If y is the total number of sweets:
y = x + x + 52 + 2y/11
9y/11 = 2x + 52
2x = 9y/11 - 52(1)
Also x + 52 = y/2
y = 2x + 104
2x = y - 104(2)
Equating (1) and (2) - (as there is 2x on left side of both equations):-
9y/11 - 52 = y - 104
52 = 2y/11
y = 52 * 11/2
y = 286 sweets.
Ответ:
y=3x+4
Step-by-step explanation: can i have brainiest