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anzhelika [568]
3 years ago
10

7 over 8 plus 1 over 2 times 3 over 10

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
6 0
7/8 + 1/2 x 3/10
= 7/8 +3/20
= 35/40 + 6/40
= 41/40
= 1 1/40 (1 and 1/40)
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Estimate the distance you can travel in 3 hours 20 minutes if you drive on average 49 miles per hour. Round your answer to the n
AlexFokin [52]

Answer:

163 miles

Step-by-step explanation:

set up a ratio based on 49 miles in 1 hour (60 minutes):

let 'd' = distance in 3hrs, 20 min

3hrs, 20 min = 200 minutes

49/60 = d/200

cross-multiply:

60d = 9800

d = 163.3

7 0
2 years ago
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Rufina [12.5K]

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If you divided each volume by the number of the jelly beans, it is 2.5

Hope it helped you!

3 0
3 years ago
5/6=7n+9/9 how do i do this
fredd [130]
The answer is in decimal formal in the file below

4 0
3 years ago
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Daniel borrowed $8,000 at 6% interest for 10 years. What was the total interest?   A. $48,000   B. $4,800   C. $480   D. $48
Mariulka [41]
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4 0
3 years ago
The fraction of defective integrated circuits produced in a photolithography process is being studied. A random sample of 300 ci
4vir4ik [10]

Answer:

(a) The confidence interval is: 0.0304 ≤ π ≤ 0.0830.

(b) Upper confidence bound = 0.0787

Step-by-step explanation:

(a) The confidence interval for p (proportion) can be calculated as

p \pm z*\sigma_{p}

\sigma=\sqrt{\frac{\pi*(1-\pi)}{N} }\approx\sqrt{\frac{p(1-p)}{N} }

NOTE: π is the proportion ot the population, but it is unknown. It can be estimated as p.

p=17/300=0.0567\\\\\sigma=\sqrt{\frac{p(1-p)}{N} }=\sqrt{\frac{0.0567(1-0.0567)}{300} }=0.0134

For a 95% two-sided confidence interval, z=±1.96, so

\\LL = p-z*\sigma=0.0567 - (1.96)(0.0134) = 0.0304\\UL =p+z*\sigma= 0.0567 + (1.96)(0.0134) = 0.0830\\\\

The confidence interval is: 0.0304 ≤ π ≤ 0.0830.

(b) The confidence interval now has only an upper limit, so z is now 1.64.

UL =p+z*\sigma= 0.0567 + (1.64)(0.0134) = 0.0787

The confidence interval is: -∞ ≤ π ≤ 0.0787.

5 0
3 years ago
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