Full jar of marbles, <span>He gave Kayla 3/4 of the marbles so 1/4 left
</span><span>Then Kayla returned 1/3 of a jar's worth of marbles to the jar
1/4 + 1/3 = 3/12 + 4/12 = 7/12
Answer: 7/12 jar of marbles now.</span>
multiply 500 by 4 to know how much is needed in grams first
500×4 = 2000
convert 2000grams to kilograms
since 1000grams make 1 kilograms....then divide 2000 by 1000
which would give you 2000/1000
answer = 2kg of sugar
Try this solution with short explanation; note, the suggested way is not the shortest one; the answers are marked with red colour.
Task no. 2: another solution is 45* (4/5) / (6/4) = 24 min.