9514 1404 393
Answer:
any real number
Step-by-step explanation:
The value of 7^0 is 1, so the equation is ...
1^x = 1
This is true for any value of x. Possible values of x are "any real number."
Equations:
m = k + 5
k = s + 2
m + k + s = 30
-----------------------
Substitute for "m" and for "s"::
k+5 + k + k-2 = 30
3k +3 = 30
3k = 27
Kirsty has 9 marbles
---
Mina has 9+5 = 14 marbles
Seb has 9-2 = 7 marbles
I know one of them is 1/2
Answer:
Solve the 1st equation for y and then you substitute the answer of the y value to the other equation to get the x value
