There are 15 mystery books are on the shelf
Answer:
y=-7x+58
Step-by-step explanation:
Answer:
<h2>9p</h2>
Step-by-step explanation:
9p - 8 + 8
9p - 0
9p
-8 + 8 cancel out.
9p is a variable, and its own term with no like terms. so you leave it alone.
That gives you 9p
Hope that helps!
Write a system of equations and solve.
x + y = 10
5x + 10y = 90
Multiply and combine equations
-5x - 5y = -50
5x + 10y = 90
------------------
5y = 40
y = 8
x = 2
There are 2 nickels and 8 dimes in the jar. Hope this helps! :)
