Answer:
-16 =n
Step-by-step explanation:
Let n= number
4n -21 = 6n +11
Subtract 4n from each side
4n-4n -21 = 6n-4n +11
-21 = 2n+11
Subtract 11 from each side
-21-11 = 2n
-32 = 2n
Divide by 2
-32/2 = 2n/2
-16 =n
Answer:
X = 5/2
Step-by-step explanation:
I will assume that you meant (1/5)X + 1/2 = 1. The LCD is 10.
Multiplying both sides by 10, we get:
2X + 5 = 10, or 2X = 5, or X = 5/2
Answer:
We use the Binomial Distribution where p =.84 then probability will be 0.931.
Step-by-step explanation:
P(X≥ 2) = P(X=2) + P (X=3)
= (³₂)(.84)^2(.16) + (³3)(.84)^3(.16)⁰
≅ 0.931
Hence 0.931 is the answer.
Answer:
35.41 km/h
Step-by-step explanation:
-Given the speed is 22 mph
-The kilometer equivalent of 1 mile is 1.60934 kilometers -hence 22 kilometers will be 22*1.60934=35.40548 rounded off a 35.41 km. Since miles was per hour and km is per hour then speed is 35.41 km/h
The closes estimate would be 40 + 20 cause of rounding to the nearest tens place
