Step-by-step explanation:
In this case, you input the value of y (y = 6) into the equation ( 2.5(y-x)= 0)
2.5(6-x) = 0
Open the bracket,
(2.5×6)-2.5x= 0
Collect like terms.
2.5x= 2.5×6
Divide both sides by the coefficient of x (2.5)
x = 6
So,
x= 6 is true.
.
Substituting 6 for x in the equation,
2.5(6-6)= 0
2.5•0 = 0
0= 0
Which is also true.
Answer:
y= -x+0: has a negative slope.
y=x: has a negative slope.
y=-4: has a slope of zero, a straight line from left to right, passing thru 4
Every whole number is a rational number because whole numbers can be written as fractions.
Answer:

Step-by-step explanation:
Based on the given conditions, formulate: 
Convert decimal to fraction:
Divide a fraction by multiplying its reciprocal:
Cross out the common factor: 
Calculate the product or quotient: 
get the result: 
Answer: 
Answer:
8 days
Step-by-step explanation:
The total cost includes $55 flat rental fee which is one time cost only as not given everyday so we subtract it from $123 and divide $(123-55) with per day cost that is $8.50 which gives 8 as answer so Val spent 8 days on vacation.