Given system of equation:
y=-1/5x +1 Equation 1
y=x+4 Equation 2
Substitute value of y in equation 2.
x+4=-1/5x+1
Multiply both sides by 5.
5x+20=-x+5
Add x to both sides
6x+20=5
Subtract 20 from both sides
6x=-15
x=-15/6
x=-5/2
Now substitute value of x in equation 1.
y=-1/5 ( -5/2) +1
y=1/2+1
y=3/2
Solution is (x,y)= (-5/2 , 3/2)
The answer is 3 + c
3 coins are 3
c coins are c
Their sum is 3 + c
Answer:
35.5 and 25.5
Step-by-step explanation:
all you have to do is take 61÷2=30.5 and you add five to one of the halves, and subtract five form the other.
61÷2= 30.5
30.5+5= 35.5
30.5-5= 25.5
