1/2. 50 pennies equals $0.50
Answer:
x= 553 is the answer.
Step-by-step explanation:
{ x + 2y = 4 * ( 3 )
-3 x + 2y = -4
3 x + 6 y = 12
-3 x + 2 y = -4
---------------------
8 y = 8
y = 8 / 8
y = 1
For x :
x + 2 y = 4
x + 2*(1 ) = 4
x + 2 = 4
x = 4 - 2
x = 2
Answer C ( 2 , 1 )
hope this helps!
1 : do 10 - 7 = 3
2: -2.5 • 3 = -7.5
3: -7.5 + -5 = -12.5
The answer is B