Amy is playing a song on her banjo. She plays an average of 90 notes per minute in her song. What does she need to do to find the average number of notes per second?

She needs to divide 90 by 60.

Step-by-step explanation:

There are 60 seconds per minute so if you want to know notes per second you would divide 90 by 60.

1.5 notes per second

Step-by-step explanation:

You need to divide the notes per minute by the seconds in a minute

90÷60=1.5

do you have the measurements?

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