Average rate= change in alt / change in time
r=-378/7=-54ft/min
When you multiply two integers, or in fact any two numbers, you are finding the product of those two numbers;
So finding the product is done through multiplication.
150. Divide 5000 by 100 and you get 50. Multiply 3 by 50 and you get 150.
The wardrobe is 3x2 inches and the tree is 18 feet
Since x is the length, then x+7 has to be the width.
The area of a rectangle can be found via the formula :
A = length * width
So if we replace the area with the given number (170) and the length, and width, with what we assumed, we get..
170 = x * (x+7)
[which is.. ]
170 = x^2 +7x
0 = x^2 +7x - 170
And that is the answer.
