Answer:15
Step-by-step explanation:
Step-by-step explanation:
1. add the numbers all together
(of the pets)
= 40 pets total
40 pets =100%
1 pet = 2.5%
percents:
Cat= 10, or 25%
Dog = 15, or 37.5 %
fish=8 or 20%
bird= 7 or 17.5%
angles:
dog= 135
cat= 90
fish= 72
bird= 63
For this case we have that by definition, a direct variation is given in the form:

Where:
k: It is the constant of proportionality
According to the statement we have to:

Substituting:


On the other hand we have:


Answer:

This becomes...........
[(y+7)/7y] x [(14y-5)/(3y^2+21y)]= [(y+7)/7y] x [(14y-5)/3y(y+7)]= [1/7y] x [(14y-5)/3y]= [(14y-5)/21y]
The answer for this is -3.6 you need to add them together then subtract!