B)100 + 20x ≥ 250. They can boat for 8 hours.
C)100 + 20x ≤ 250. They can boat for 8 hours.
D)100 + 20x ≥ 250. They can boat for 7 hours.
A.7 2/3 gallons
B.7 5/6 gallons
C.7 2/9 gallons
D.7 8/9 gallons
Which equation best models the relationship between x and y?
y = −5x + 25
y = −25x + 125
y = −25x + 175
y = −5x + 125
Equation best models the relationship between x and y is :y = −25x + 175
The correct option is (C).
Equation, statement of equality between two expressionsconsisting of variables and/or numbers.
Given that :
John reads an equalnumber of pages of a book every week.
If the number of pages of the book left to read, y, after xweeks.
x-axis y-axis
0 0
1 25
2 50
3 75
4 100
5 125
6 150
7 175
Then the representation of equation is :
y+25x=175 (total pages is 175).
Hence, y=-25x+175
Learn more about equation here:
#SPJ5
Answer:
27.5 m/s
Step-by-step explanation:
Average speed = distance / time
s = (2500 m + 3000 m) / (200 s)
s = 27.5 m/s
Note that average speed is different than the average velocity. Average velocity would be displacement over time, rather than distance over time.