Number of biscuits shared by Mrs Perry = 25
ratio in which the biscuits were shared between Gemma and Zak = 1:4
Let us assume the common ratio = x
then
x + 4x = 15
5x = 15
x = 3
Then
The number of biscuits that Gemma got = 3
The number of biscuits that Zak got = 4x
= 4 * 3
= 12
So
Gemma: Zak = 3:12
I hope the procedure is clear enough for you to understand.
Answer:
146
Step-by-step explanation:
180=4+30+x
180=34+x
180-34=x
146=x
Square root function. f(x)= square root x x> or = to 0
Slope = change in y / change in x
= (15 - 9) / (7 - 5)
= 6 / 2
= 3
Don't hate on me if i'm wrong please...
Answer: y=x^2-25 or C
