Ask you r self how many times does this go into your answer then subtract the sum and bring down numbers if necessary
according to Pythagorean theorem a²+b²=c² ; when c is hypotenuse .
Answer:
3. -2x+y=-9
4. -1/2x+y=8
5. -3/4x+y=0
Step-by-step explanation:
To solve this you just need to get both variables on one side.
Hope this helps!
Answer:
One shirt cost $15
One pair of shoes cost $20
Step-by-step explanation:
Let
x-----> the cost of one shirt
y----> the cost of one pair of shoes
we know that
-----> equation A
-----> equation B
Solve the system of equations by graphing
The solution of the system of equations is the intersection point both graphs
The solution is the point (15,20)
see the attached figure
Therefore
One shirt cost $15
One pair of shoes cost $20