You will need to give at least 2 values to plug in to solve the equation.
However, to solve for a single variable, you need to isolate it.
See picture taken as in how to solve for one variable.
Answer:
X=-1, y=4
Step-by-step explanation:
by using eliminating property
by substitution
X=-1
<h2>Answer : 144 cents</h2>
Step by step explanation
<u>Given: cost of 21 inches of wire costs 63 cents</u>
<u>Cost of 1 inch wire = 63/21 = 3 cents</u>
<u>Cost of 48 inches of wire = 48×3 = 144 cents</u>
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It's A, A encompasses all the outputs, and doesn't leave you with too much blank space.
This can be solved using the pythagorean theorem. The theorem is shown below:
c^2 = a^2 + b^2
The hypotenuse is c, so substituting the given values:
c^2 = (5)^2 + 12^2
c^2 = 25 + 144
c = sqrt(169)
c = 13
Therefore, the correct answer is B. 13 cm.