Answer:
s = 3h
0.2h + 0.1s = 5
10 Hats
30 Scarfs
Step-by-step explanation:
As given in the question, h = the number of hats Kaelyn makes and s = the number of scarves she makes.
Hat = 0.2 kg of yarn
Therefore, yarn used in Hats = 0.2h kg
Each scarf = 0.1 kg of yarn
Yarn used in scarfs = 0.1s kg
i. 0.1s + 0.2h = 5
ii. s = 3h
Substituting equation ii into i,
0.3h + 0.2h = 5
0.5h = 5
= 10
Therefore, scarf, s = 3 * 10
= 30
10 Hats
30 Scarfs
Answer:
0.900?
Step-by-step explanation:
For the answer to the question above,
<span>V(n) = a * b^n, where V(n) shows the value of boat after n years.
V(0) = 3500
V(2) = 2000
n = 0
V(0) = a * b^0 = 3500
a = 3500
V(2) = a * b^2
2000 = 3500 * b^2
b = sqrt (2000/3500)
b ≈ 0.76
V(n) = 3500 * 0.76^n
We can check it for n = 1 which is close to 2500 in the graph:
V(1) = 3500 * (0.76)^1
V(1) = 2660
And in the graph we have V(3) ≈ 1500,
V(n) = 3500 * (0.76)^3 ≈ 1536
Now n = 9.5
V(9.5) = 3500 * (0.76)^(9.5)
V(9.5) ≈ 258</span>
Answer:
(5, 10 ) ( 2, 25 )
Step-by-step explanation:
If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
Referring to a standard normal distribution table, and using z = 0.66, we find:
Therefore
The answer is: 0.2546
