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سؤال 69

Which predictions correctly use direct proportion? Select all that apply.

  1. Six identical candles use 18 grams of wax, so eighteen use 24 grams.
  2. Eight identical bottles hold 6 litres, so fourteen hold 10.5 litres.پاسخ درست
  3. Four seedlings need 600 millilitres of water, so ten need 606 millilitres.
  4. Five identical bars have a mass of 1.25 kilograms, so nine have a mass of 2.25 kilograms.پاسخ درست

توضیح

A bottle holds 6 divided by 8, or 0.75 litres, so fourteen hold 10.5 litres; one bar has a mass of 1.25 divided by 5, or 0.25 kilograms, so nine have a mass of 2.25 kilograms. The candle prediction is the closest false claim because three times as many identical candles would burn 54 grams, not 24 grams.

ادامهٔ این آزمون

شروع تمرین
سؤال 69: Which predictions correctly use direct proportion? Select… · Ratios and Proportions · Questena