3.4d + 3.4d = 12 + 6.5
6.8d = 18.5
<u><em>d = 2.72</em></u> (this answer is rounded. To get the full answer, divide 18.5 by 6.8)
Answer:
26 and 28
Step-by-step explanation:
1st integer = x
2nd integer = x + 2
x + x + 2 = 54
2x + 2 = 54
2x = 52
x = 26
The 1st integer is 26.
The 2nd integer is 28.
Let's add these numbers.
26 + 28 = 54
54 = 54
Answer:
84%
Step-by-step explanation:
The percentage of pink shirts
= 9/200 × 100%
= 9/2
= 4.5%
The percentage of orange shirts
= 69/600 × 100%
= 69/6
= 11.5%
The percentage of the shirts which are not pink or orange
= 1 - 4.5% - 11.5%
= 84%
<u>Alternative</u>
Find their common denominator.
9/200
= 9×3 / 200×3
= 27/600
The total percentage of shirts in pink and orange
= (27/600 + 69/600) × 100%
= 96/600 × 100%
= 16%
The percentage of the shirts which are not pink or orange
= 1 - 16%
= 84%
Answer: 0.0051
Step-by-step explanation:
Given the following :
Average Population weight (m) = 190
Population standard deviation (σ) = 35
Total weight of 25commuters (x) = 5200
Sample mean = 5200 /25 = 108
Sample standard deviation = standard error :
σ / √n = 35/√25 =
35/5 = 7
Zscore = (x - m) / standard error
Zscore = (208 - 190) / 7
Zscore = 18 / 7
= 2.57
P( Z > 2.57) = 1 - p(Z < 2.57)
P(z < 2.57) = 0.9949
1 - p(Z < 2.57) = 1 - 0.9949 = 0.0051
Answer:Add up fractions. The answer is 11 17/48
Step-by-step explanation:
hope this helps!