Answer:
Step-by-step explanation:
x + 70 = 180 {Linear pair}
x = 180 - 70
x = 110
y + 82 = 180 {linear pair}
y = 180 -82
y = 98
x - 4 = 110 - 4 = 106
2y - 40 = 2*98 - 40
= 196 - 40
= 156
Answer: -38 (below sea level basically means negative)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given: 
Let's changed that mixed number to an improper fraction. Now we get:
Let's find out least common denominator. This one is easy, the LCD is 8. Now that we know the LCD, let's convert both our fractions:
We can use 
because it is equal to 
. Now, all we need to do is subtract the numerators:
A proportional relationship runs through the origin and is a straight line. If you have a table, use the points to determine the slope. Is there one slope? If so, it is a proportion. If there isn't, it is not a proportional relationship (which is what you're looking for). Do you have a graphing calculator on hand? Those are extremely useful when you have an equation. Graph the equation and look at the image. Is it NOT straight? Does it NOT pass through the origin? This is how to find whether an equation is proportional or not.
26250m I think this is right
