How much of the 8% solution should we use to make 100g of a 3% solution

Assuming the stock solution is 8% by weight, then

100g of 3% solution contains 100*3%=3g of pure substance.
Amount of 8% substance needed is 3/(8%) g= 3g / (0.08g) = 37.5 g of 8%

mixed with (100-37.5)=62.5 g water.

Bi’m pretty sure hope it works

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answer:
congruent segments
step-by-step explanation:
congruent segments. take a line, cut it in half, superipose one half over the other half; you'll have congruence.