13. 1,6
18. -15,12
19. -7, 1/2
Answer:
A) 112 3/4 inches
___
B) 5.555 inches
Step-by-step explanation:
Each tile has its own constant width of 2 3/4 in. and length of 5 1/2 in.
The width of the sidewalk is 9 tiles wide; therefore, the width in inches can be found by calculating 9 x 2 3/4
The length of the sidewalk is 25 tiles long; therefore, the width in inches can be found by calculating 25 x 5 1/2
Sidewalk: W = 24 3/4 in. L = 137 1/2 in.
A) L-W
B) L/W
Answer:
2 5/8 inches
Step-by-step explanation:
This is a subtraction problem.
You must subtract 58 1/8 inches from 60 3/4 inches.
We need a common denominator for the fractions.
The LCD of 4 and 8 is 8.
60 3/4 = 60 6/8
58 1/8 = 58 1/8
60 3/4 - 58 1/8 = 60 6/8 - 58 1/8 = 2 5/8
Answer: 2 5/8 inches
Answer:
The value of the expression increases as j decreases
Step-by-step explanation:
Let 

As j decreases, the value of j300 decreases (i.e the farther j300 is from 150). Due to the wider gap between 150 and j300, the value of f(j) increases.
For example:
When j = 1, f(j) = 150 - (300*1) = -150
When j = 0.5, f(j) = 150 - (300*0.5) = 0
When j = 0. f(j) = 150 - (300*0) = 150
It is obvious from the analogy above that the expression 150-j150−j150 increases as j decreases