Answer:
Where is the data
Step-by-step explanation:
Answer:
Ron: 6+2√5 days ≈ 10.47 days
Lee: 2+2√5 days ≈ 6.47 days
Step-by-step explanation:
Let L represent the number of days it takes Lee to frame a cabin. Then it take L+4 days for Ron to frame it. Working together, they take 4 days. Then their rates, in cabins per day, add up as ...
1/L + 1/(L+4) = 1/4
Multiplying by the product of denominators, we get ...
4(L+4) +4L = L(L+4)
Subtracting the left side gives ...
L^2 -4L -16 = 0
Completing the square, we can write this as ...
L^2 -4L +4 = 20
(L -2)^2 = 20
L = 2 + √20 = 2 +2√5 ≈ 6.47
Lee takes 2+2√5 ≈ 6.47 days to frame a cabin.
Ron takes 6+2√5 ≈ 10.47 days to frame a cabin.
Step-by-step explanation:
Given
11x - 6 = 3 - 10x
11x + 10x = 3 + 6
21x = 9
x = 9/ 21 (divide both numerator and denominator by 3)
x = 3 / 7
Hope it helps :)
Answer:
20
Step-by-step explanation:
40/100 of x = 8
x = 8 x 100 / 40 = 20
( I hope im right!!)
Answer:
false, false, true, true, true
Step-by-step explanation:
Let's check each of the answers by plugging them into the inequality.
-2 (false):
which is false.
-1 (false):
which is false.
0 (true):
which is true.
1 (true):
which is true.
2 (true):
which is true.
