In order to answer this question let's suppose,
Joe is x miles from the beginning and y miles from the end. These assumptions are necessary to answer further:
Now,
x=2y
x+y=30
plugging in x=2y in the above equation
2y+y=30
3y=30
y=10
Hence, according to our calculations, Joe has to hike 10 miles further
20% off means you paid only 80% of the original price.
0.8x=40
x=40÷0.8=50
so the original price is 50
You can make a table like this:
If 1 bag=5 pounds
Then 6 bags must equal six times the weight of the first bag
5 times 6=30
Your answer is reasonable because 5+5+5+5+5+5=30
a.k.a
=5 =30
No, because using the vertical line test, two points touch on the same line
[3, 3]
[3,4]
D.) "The graphs of the equations intersect each other at two places."
