I think it's the second equation. I could be wrong but I think that's what it is
Answer:
7.5 cm
Step-by-step explanation:
it is a right triangle, b=10, hypotenuse c=12.5
a^2+b^=c^2 the Pythagorean theorm
a^=c^2-b^2
a^2= 12.5^2-10^2
= 56.25
a=√56.25=7.5 cm
Answer
Find out the how many birds were at the shelter on Wednesday .
To prove
let us assume that the number of birds be = x
let us assume that the number of cats be = y
As given
An animal shelter spends $3.00 per day to care for each bird and $7.00 per day to care for each cat.
Alexandra noticed that the shelter spent $174.00 caring for birds and cats on Wednesday.
than the equation becomes
3x + 7y = 174
As given
Alexandra found a record showing that there were a total of 34 birds and cats on Wednesday.
than the equation becomes
x + y = 34
Than the two equation are
3x + 7y = 174
and x + y = 34
multiply 3 by x + y = 34 and subracted from 3x + 7y = 174
3x - 3x + 7y - 3y = 174 - 102
4y = 72
y = 18
put in the equation x + y = 34
18 + x = 34
x = 34 - 18
x = 16
The number of birds at the shelter on wednesday is 16 .
Answer:
C
Step-by-step explanation: