Answer:
2.72 hours
Step-by-step explanation:
Data provided:
Time taken by Huck Finn to paint the fence = 5 hours
Time taken by Tom to paint the fence = 6 hours
Now,
Fence painted in 1 hour by Huck Finn = of total fence
and,
Fence painted in 1 hour by Tom = of total fence
Therefore,
Total fence painted together by Huck and Tom in 1 hour = +
or
Total fence painted together by Huck and Tom in 1 hour =
or
Total fence painted together by Huck and Tom in 1 hour =
Hence,
Time taken by Huck and Tom to together paint the fence =
= 2.72 hours
Answer:
Option B. m⁷/n² is the correct answer.
Step-by-step explanation:
Identity,
xᵃ * xᵇ = xᵃ⁺ᵇ
xᵃ/xᵇ = xᵃ⁻ᵇ
x⁻ᵃ = 1/xᵃ
It is given that,
m⁻⁶ n⁻³/m⁻¹³ n⁻¹
Using these three identities we can write,
m⁻⁶ n⁻³/m⁻¹³ n⁻¹ = m⁻⁶ m¹³/n⁻¹n³ (since x⁻ᵃ = 1/xᵃ)
m⁻⁶ m¹³/n⁻¹n³ =m⁽⁻⁶⁺¹³⁾/n⁽⁻¹⁺³⁾ = m⁷/n² (since xᵃ * xᵇ = xᵃ⁺ᵇ and xᵃ/xᵇ = xᵃ⁻ᵇ)
Therefore Option B. m⁷/n² is the correct answer
Answer:
Each friend gets 3/4 of a fruit bar
Step-by-step explanation: