Helena creates two similar rectangles using exactly 100 cm of string. the smaller rectangles width and length are 4 cm by 6 cm respectfully. what are the dimensions of the larger rectangle? rounded to the nearest whole number.

The dimensions of the larger rectangle are of length by of width

Step-by-step explanation:

Let

x-----> the length of the larger rectangle

y-----> the width of the larger rectangle

we know that

------> by similar rectangles

-----> equation A

Find the perimeter of the smaller rectangle

Find the perimeter of the larger rectangle

Subtract  the perimeter of the smaller rectangle from 100 cm of string

Remember that

------> ------> equation B

substitute equation A in equation B

Find the value of x

The dimensions of the larger rectangle are of length by of width

To find the answer to this problem, all you have to do is divide the price of the product by the number of ounces. So to find the price per ounce of the large can of tomato soup, you divide 4.40 by 22, which equals .20 cents per ounce. For the smaller can, you divide 1.80 by 10, which equals .18 cents per ounce. So the smaller can has the best price per ounce.