Answer:
56
Step-by-step explanation:
Answer:
Step-by-step explanation:
A symbol for a value we don't know yet. It is usually a letter like x or y.
Example: in x + 2 = 6, x is the variable.
Why "variable" when it may have just one value? In the case of x + 2 = 6 we can solve it to find that x = 4. But in something like y = x + 2 (a linear equation) x can have many values. In general it is much easier to always call it a variable even though in some cases it is a single value.
Answer:
8 billetes de 20
17 billetes de 10
Step-by-step explanation:
Answer:
( x-2)^2 +(y-5)^2 = 12.25
Step-by-step explanation:
The equation of a circle is given by
(x-h) ^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius
( x-2)^2 +(y-5)^2 = (3.5)^2
( x-2)^2 +(y-5)^2 = 12.25
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