Answer:
x ≤ 4.9
Step-by-step explanation:
5x +1/2≤ 25
Multiply each side by 2 to get rid of the fractions
2(5x +1/2)≤ 25*2
10x +1 ≤ 50
Subtract 1 from each side
10x+1-1 ≤50-1
10x ≤ 49
Divide by 10 on each side
10x/10 ≤ 49/10
x ≤ 4.9
Hello!
2.13 x <span>10^<span>−<span>9
You want to make sure the number(after you move the decimal places) should be in between 1-10.
2.13 is in between 1-10.
</span></span></span><span><span><span>I hope this helps;)</span></span></span>
Answer:
45
Step-by-step explanation:
Given that :
Voucher awarded (x) :
Repair = $50
Lose or destroy = $200
P(x):
Replacement voucher = 5%
Repair voucher = 10%
X ______ 50 ______ 200
P(x) ____ 0.1 _______ 0.05
Expected variance Var(X) :
ΣX²p(x) - E(x) ;
E(x) = Σx*p(x) = (50*0.1) + (200*0.05) = 15
ΣX²p(x) = Σ[(50^2 * 0. 1) + (200^2 * 0.05)] = 250 + 2000 = 2250
Var(X) = 2250 - 15^2 = 2025
Standard deviation = √Var(x)
Standard deviation = √2025
Standard deviation = $45
Honestly I think you are correct, not trying to take your point. :)
Answer:
i think it's 15 because if you use 5 and you have to do it by 3 it should be 15
