We have been given that Blythe shaded 4 columns and 3 single squares of a 100 square grid to represent the portion of days that it rained last year.
We know that one column of a 100 square grid is equal to 10 single squares. So 4 columns will be equal to 4 times 10 single squares that is [tex]4\times 10=40[/tex].
Total shaded squares: [tex]40+3=43[/tex].
Now we will find the number of squares that are not shaded by subtracting number of shaded squares (43) from total squares (100).
[tex]\text{Not shaded squares}=100-43[/tex]
[tex]\text{Not shaded squares}=57[/tex]
Now we need to find 57 is what percent of 100.
[tex]\frac{57}{100}\times 100\%=57\%[/tex]
Therefore, Blythe did not shade 57% of the grid.
