Mathematics: (3×108)(2×106) pls help me ;-;

(3×108)(2×106) pls help me ;-; - id3108210613076999, deadea46

krob95

17.07.2020

The ratio of the area of the school banner to the area of the sign is 256 : 25

Step-by-step explanation:

The school banner has a length of 48 inches and a width of 30 inches.

Suppose, the width of the sign is inch.

Given that, the sign is similar to the school banner and has a length of 15 inches.

So, according to the ratio of length and width, the equation will be......

$\frac{48}{30}= \frac{15}{x} \\ \\ 48x=30*15=450\\ \\ x=\frac{450}{48}=9.375$

So, the width of the sign is 9.375 inches.

Formula for area of rectangle is: $(length\times width)$

So, the area of the school banner $=(48\times 30)inch^2= 1440 inch^2$

and the area of the sign $=(15\times 9.375)inch^2 = 140.625 inch^2$

Thus, the ratio of the area of the school banner to the area of the sign will be: $\frac{1440}{140.625}= \frac{256}{25}=256:25$

0,0(0 оценок)