Answer:
length = 10 units; width = 3 units
Step-by-step explanation:
Let the width = w
Then the length is w + 7
Original area: w(w + 7)
Double the width: 2w
Increase the length by 2: w + 9
Area of new rectangle: 2w(w + 9)
Area of new rectangle = w(w + 7) + 42
2w(w + 9) = w(w + 7) + 42
2w^2 + 18w = w^2 + 7w + 42
w^2 + 11w - 42 = 0
(w + 14)(w - 3) = 0
w + 14 = 0 or w - 3 = 0
w = -14 or w = 3
A width cannot be negative, so we discard w = -14.
The original width is 3 units.
The length is 7 more than the width, so the length is 10 units.
Answer:
4 x 
Step-by-step explanation:
3.2 x 
= 320,000,000
320,000,000 ÷ 80 = 4,000,000
4,000,000 = 4 x
Answer:
2 Miles per hour
Step-by-step explanation:
velocity (speed) formula is distance/time.
In this case, 6/3=2
Well, we have to determinate the 65% of 140, which are 91 members play soccer.
The total members are 140, if 91 play soccer, 49 members do not play soccer.
The answer is 49 members.
