Answer:
3
Step-by-step explanation:
Answer:
Dimensions = 21 centimeters by 4.2 centimeters.
Step-by-step explanation:
Let the length of the rectangle be L.
Let the width of the rectangle be W.
Given the following data;
Perimeter of rectangle = 50cm
Translating the word problem into an algebraic expression, we have;
L = 5W
To find the dimensions of the rectangle;
Perimeter of rectangle = 2L + 2W
50 = 2L + 2W
50 = 2(5W) + 2W
50 = 10W + 2W
50 = 12W
W = 50/12
W = 4.2 cm.
To find the length;
L = 5W
L = 5*4.2
L = 21 cm.
Answer:
150s or 2 min and 30 s
Step-by-step explanation:
20 facts = 1 min
10 facts = 30s
50 facts = ? min
50 / 10 = 5
30 * 5 = 150s
150s = 2 min and 30 s
B because when you add .3 to 5 you get 5.3 and when you ad .3 to 5.3 you get 5.6 and so on
