Answer:
Let's denote:
Number or gifts cost 20 = x
Number or gifts cost 22.5 = y
Then, we have:
x + y = 10
20x + 22.5y = 217.5
=> 20(10 - y) + 22.5y = 217.5
=> 2.5y = 17.5
=> y = 7 (Number or gifts cost 22.5)
=> x = 10 - 7 = 3 (Number or gifts cost 20)
Hope this helps!
:)
Your answer would be 3 as i said b4 a^2 + b^2 = c^2
Answer:
x intercept =
Step-by-step explanation:
i show how i did it on the picture! :)
and for future reference, if you need to figure out the y-intercept, just do what i did but except cover up the x! :)
X should equal to 17 but i dont see what ben did...
