You can use mental math to help you multiply numbers by using the distributive property to divide it easily and then add them up to get a quick answer.
Answer:
24 5/9
Step-by-step explanation:
convert into improper fraction
13/3*17/3=2211/9
then simplify to
24 5/9
Answer:
147 bottles
Step-by-step explanation:
each day is an increment of 3 bottles day 10 was 42 bottles
day 20 was 72
safe to assume every 10 days is 30 bottles sold so day 30 is 102 and day 40 is 132 bottles
then add 3 for the remaining 5 days
Answer:
14
Step-by-step explanation:
4÷2=2 he mows 2 lawns every hour so 7×2-14