Answer:
60
Step-by-step explanation:
Given the following :
Half of baseball card got wet and was ruined
Number of baseball cards bought has replacement for the ruined cards = 20
Total number of baseball cards now = 50
The initial number of baseball cards =?
Let the initial number = y
Number that hit ruined = half of initial = y/2
Hence,
y - y/2 + 20 = 50
y/2 + 20 = 50
y/2 = 50 - 20
y/ 2 = 30
y = 30 * 2
y = 60
Hence, he started with 60 baseball cards.
Answer is 6.
3x4=12, 12-6=6
20 + 1 + .03 + .005 = 21.035
Step-by-step explanation:
the fence = the perimeter of the rectangle = 200 ft.
and the perimeter of a rectangle is
perimeter = 2×length + 2×width
length = width + 2
so,
200 = 2×(width + 2) + 2×width = 2×width + 4 + 2×width
196 = 4×width
width = 196/4 = 49 ft