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Answer:
The ratio of the smallest and biggest numbers is 3:9
The difference between them is 420
the larger number is 3x the smaller number
Therefore we can express the smaller number as the variable x and the larger number as 3x. Together they add up to 4x which is the ultimate answer you are seeking.
First, do the subtraction: 3x - x = 2x
2x = 420
Divide by 2:
x = 210
3x = 630
Add them together and you get 840 :)
the middle number is 350 btw. Divide x by 3 (to get 70) and then multiply by 5 (to get 350).
630 / 350 = 1.8
9/5 = 1.8
(don’t forget, ratios are also another way to write fractions. Hence why I solved them here).
Step-by-step explanation:
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