What is the ratio of the number of 8 nickels to the number of 10 dimes?

2/5

Step-by-step explanation:

A nickel is worth= 5 cents.

A dime is worth= 10 cents.

So ratio=8×5/10×10

=40/100

=2/5

So the ratio is 2/5

3/6   and 9/18

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl