when i went to the playground to play , i saw one alien . he said that he will destroy the earth. to save the earth you have to solve 3 math questions.
the first question was : determine the unit rate . A) three rolls for 99 c .
Answer : 1 roll for 33 c .
the next question : B) seven identical objects have a mass of 14 kg .
answer : 1 object / 2kg .
the alien said " wow , you have all of the answers right ! on to the next question "
question : fresh pickerel is advertised in a local market.
A) how much will 6kg pickerel cost ?
answer: 6 pickerel for $ 52.80
B) use a proportion to find the cost of 1600 g of pickerel. answer : 16 pickerels for $140.80
the alien said " k , 1 more question "
question : A gardener takes a half hour to mow and weed a lawn that measures 20m by 15m. He charges $25 per hour. How much would the gardener receive for a lawn that measures 40m by 30m?
answer : the gardener will receive $ 50 .
the alien said " WOW , you have all the answers right ! , now I'm not going to destroy the earth (: "
I said " ooh thanks ! "
THE END .