Originally Posted by Rocher
Originally Posted by Rocher
Like this (Everything in bolded is the questions, and just give the answer. If you have time, steps too, but it is not required) :
(Write the following in algebraic expression)
Find the sum of the squares of two consecutive integers (Let the smaller integer be n.)
Brrr... brain freeze!!
The 2 adjacent sides of a rectangle are m cm and n cm. What is the total length of the adjacent sides? It is... (# cm)
2 times a number plus 12 is equal to the sum of the number and 36. What is the number? I put 12... iz that right?
In 16 years, John will be 3 times as old as he is now. How old is he?
The area of this trapezium is 270 cm2 (Squared). Find its height. They give me two measurements already: 8 cm, and 28cm.
Two times a number ( 2X ) plus 12 is equal to the sum of that number and 36.
I think the equation should look like 2X + 12 = X + 36 then X = 24
Johns current age is unknown ( X ). In 16 years he will be 3 times X
The equation should look like X + 16 = 3X Can you get it from here?
Don't remember trapaziods.
The area of a trapaziod is given by the following equation
Area = Height * ((a + b)/2) Because you are given the area and you ask for the height, I would assume that the two measurements you are given is a and b
So 270 = h * (28 + 8)/2
270 = h * 36/2
270 = h* 18 divide both sides by 18 and you get
15 = h
(and why is there no equation editor here )