70
make 30 minutes into an hour then divide 140 by 2
140/2=70
70x1=70
Answer:
5
Step-by-step explanation:
You can express this as a system of equations:
x in this instance will be her present age.
x + 8 = 2x + 3
simply solve for x after this by subtracting three and x from both sides, and you’ll find that x is 5.
$360.00
(I hope this was helpful)
(-2, 2)
x= -2 y= 2
