<u>Answer: </u>
The percentage increase when Mrs.Lay’s instagram followers went from 40 to 72 is 80%
<u>Solution:</u>
The percentage increase can be found out by dividing change in value by initial value. This is given as,
From question, we get
Initial count of Mrs.Lay = 40
Final value of Mrs.Lay = 72
So percentage increase when Mrs Lay’s Instagram followers went from 40 to 72 is
= 80
Hence percentage increase when Mrs Lay’s Instagram followers went from 40 to 72 is 80%.
Given:
The number of cycles is, <em>n</em> (s) = 7.
The number of wheels in the cycle is, <em>n </em>(sw) = 2.
The number of cars is, <em>n</em> (c) = 15.
The number of wheels in the car is, <em>n</em> (cw) = 4.
The obective is to find the total number of wheels.
The total number of wheels is,
Hence, there are 74 wheels in the block.
If there are <em>x</em> bicycles and <em>y </em>cars, the equatioin will be,
Hence, the number of wheels for x bicycles and y cars is 2x+4x.