Answer:
x = 75
Step-by-step explanation:
Given information from the question:
x - 3y = 30
y = 15
We can substitute y = 15 into the equation to find x.
x - 3(15) = 30
x - 45 = 30
x - 45 + 45 = 30 + 45
x = 75
24 because when you plug in 0 for both x and y:
0=12(0)+24
12*0=0, leaving you with 24.
2|x - 5| - 8 = 0
2(x - 5) - 8 = 0
2x -10 - 8 = 0
2x -18 = 0
+ 18 + 18
---------------------
2x = 18
----- -----
2 2
x = 9
Distance covered in 1 week which involves 3 days of walking to the library = 0.83 miles
In 4 weeks,
Total distance walked = 4*Distance covered in 1 week = 4*0.83 = 3.32 miles.
The correct answer is B. since the distance walked ≥ 3.32 miles and not too large than 3.32 miles.