If 0 lies in the quadrant IV. What can be the value of cos 0 ?
2 answers:
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Answer:
The number of birds are 6 and number of cats are 21 at the shelter on Thursday .
Step-by-step explanation:
Let us assume that the number of bird be x .
Let us assume that the num ber of cat be y .
As given
An animal shelter spends $4.50 per day to care for each bird and $5.50 per day to care for each cat. Nathaniel noticed that the shelter spent $142.50 caring for birds and cats on Thursday.
4.50x + 5.50y = 142.50
Simplify the above
450x + 550y = 14250
As given
Nathaniel found a record showing that there were a total of 27 birds and cats on Thursday.
x + y = 27
Two equations are
450x + 550y = 14250
x + y = 27
Multiply x + y = 27 by 450 and subtracted from 450x + 550y = 14250 .
450x - 450x + 550y - 450y = 14250 - 12150
100y = 2100
y = 21
Putting the value of y in the equation x + y = 27 .
x + 21 = 27
x = 27 - 21
x = 6
Therefore the number of birds are 6 and number of cats are 21 at the shelter on Thursday .