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2 answers:
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<span>I'm pretty sure that the solution looks like this </span>
. But Also you can use this formula (r-k+1 C r). You will get 18C3.
corrected question:
A rectangle and a square have the same perimeter. One side-length of the rectangle is 25% longer than the other. What is the ratio between the areas of the rectangle and the square?
Answer:
ratio of area of recatngle to square= 0.9879
Step-by-step explanation:
perimeter of rectangle = 2(L+B)
perimeter of a square =
L=B+0.25B
L=1.25B
= 2(L+B)
= 2(1.25B+B)
= 2(2.25B)
= 4.5B
B= 4/4.5
B= 0.889 ..........equ1
area of square =
area of rectangle = L*B
=1.25B*B=
ratio of area of recatngle to square =
referring to equ 1
ratio of area of recatngle to square =
=
ratio of area of recatngle to square= 0.9879