120 sweets are shared out into three piles, in the ratio 3:4:1. How many more sweets does
the biggest pile have than the smallest?

35

Step-by-step explanation:

3+4+1=8

120/8=15

3:4:1

45:50:15

50-15=35

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if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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