The answer would be 8,000 because one row = 320 beads, and 25x320=8,000
Step-by-step explanation:
Distance = rate × time
If B is the rate of the boat, and C is the rate of the current, then we can write two equations:
18 = (B + C) × 3
18 = (B − C) × 9
Simplifying the equations:
6 = B + C
2 = B − C
Add the equations together to eliminate C:
8 = 2B
B = 4
Plug into either equation to find C:
C = 2
The boat's rate is 4 mph, and the current's rate is 2 mph.
Answer:
Step-by-step explanation:
3 6 9 12 15
5 .
10 .
15 .
20 .
25 .
Answer:
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A = L * W
Given: The area of a rectangle is 70 m^2
L * W = 70
L = 3W - 11
Substitute L = 3W - 11 into L * W = 70
(3W - 11) * W = 70
3W^2 - 11W = 70
3W - 11W - 70 = 0
(3W + 10) (W - 7)= 0
3W + 10 = 0; W = -10/3 (Dimension can't be negative)
W - 7 = 0; W = 7
L = 3W - 11 = 3(7) - 11 = 21 - 11 = 10
Answer
Length: 10 m
Width: 7 m