Calculus Answers

There were 825 people in the library.40% of them were abults.The rest were children.Among the children,the ratio of the number of girls to the number of boys was 3:2 \.How many more adults than boys were there?

Amy had $214 more than her brother.After their father gave Amy $85 and her brother $66,Amy had twice as much money as her brother.How much did Amy have at first?

2 pears cost as much as 3 apples.If the total cost of 2 pears and 3 apples is $2,what is the cost of 12 apples?

Box B contained 1/2 as many buttons as Box A.Box C contained 2/3 as many buttons as Box B.The average number of buttons per box was 99.How many butttons were there in Box C?

A tank has a base of 1.6m by 1.2m.It can hold 1824 litres of water when filled to the brim.Find the height of the tank in metres.

Container A measuring 2m by 70cm by 1.5m is 4/5 filled with water.The water in container A is poured into container B with a base of 150cm by 175cm.What is the height of the water in container B in metres?

Sam paid $64 for 5 similar files and 3 similar textbooks.A textbook cost $8 more than a file.What was the cost of one textbook?

Jolin had to multiply 2.85 by 3.She added the two numbers instead.What was the difference between her answer and the actual answer?

prove that the function x=tanx has not horizontal tangent lines

Show that if a,b>=0; c,d>0; with a/c + b/d > 1 then:
lim[(x,y)->(0,0)] (|x|^a*|y|^b) / (|x|^c+|y|^d) = 0

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