The graphs are exactly the same, EXCEPT that the graph of y=sqrt(x) has to be translated 3 units down to obtain the graph of y=sqrt(x)-3.
Unfortunately, I can't do it on a graph here, but I will do it algebraically.
The solution on the graph will be the point of intersection of the two lines representing the equations.
y + 2.3 = 0.45x . . . . . (1)
-2y = 4.2x - 7.8 . . . . . (2)
From (2), y = 3.9 - 2.1x
substituting for y in (1), we have:
3.9 - 2.1x + 2.3 = 0.45x
2.55x = 6.2
x = 6.2/2.55 = 2.4
y = 3.9 - 2.1(2.4) = 3.9 - 5.04 = -1.2
Therefore, solution is (2.4, -1.2)
Answer:
45
Step-by-step explanation:
A and B are equivalent and C and D are equivalent
Rule of three
Pages %
204 → 136%
x → 100% (her goal)
x=204*100%/136%
x=150 pages
Answer: Rebeca wants to read 150 pages each day