Answer:
Originally there were 30, 25 cents stamps and 20, 15 cent stamps.
Step-by-step explanation:
We are given the following in the question;
Let x be the number of 25 cents stamps and y be the number of 15 cents stamps.
Marci has a total 50 stamps.
Thus, we can write
Also,
Total cost = $16.50
Thus, we can write the equation:
Solving the two equations:
Originally,
Thus, originally there were 30, 25 cents stamps and 20, 15 cent stamps.
Step-by-step explanation:
I think Rewrite the equation as
z
=
20
x
−
3
y
.
z
=
20
x
−
3
y
Answer:
x = 55°
Step-by-step explanation:
x = 180° - 85° - 40° = 55°
Answer:
y=5x
Step-by-step explanation:
From (2,10) you rise 25 in the y direction and run 5 in the x direction to get to the next known point (7,35).
Thus, the slope is y=25/5x AKA y=5x