Answered

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The ratio of numbers is 3:5:9.if the difference of the smallest number is 420, what is the sum of the three numbers

Sagot :

Josephraposonidn

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:

oks

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