Answer:
Y=20
Step-by-step explanation:
90= (4y+10)
90-10=4y
80=4y
Y=80/4= 20
4 minutes 12 seconds is 252 seconds
3 minutes 54 seconds is 234 seconds
252 seconds for 462 beats is in proportion with 234 seconds with some number of beats
Set up the proportion:
⇒
⇒
⇒
So the new song has 429 beats.
3,4,5 can make a triangle
3,7,10 cannot make a triangle
6.2, 7.9, 12.5 can make a triangle
2,8,9 can make a triangle
10,20,50 cannot make a triangle
Find two points on the graph.
(3 , -3) and (-5 , 4)
-3 - 4 / -3 - 5
-7 / -8
7/8.
So your answer is F. 7/8