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bija089 [108]
3 years ago
12

Help? how do I solve these problems? ??

Mathematics
1 answer:
saveliy_v [14]3 years ago
5 0
15A- Damon earns around $320 (32 x 10)
15B - Damon earns $344.00 a week (32 x 10.75)
15C - Yes

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Choose the number that has the digit 5 with value thats is 10 times less than the value of the digit 5 in This number is 54,271
kondaur [170]
54,271 is the answer
8 0
3 years ago
When testing gas pumps for accuracy, fuel-quality enforcement specialists tested pumps andfound that 1304 of them were not pumpi
elena-14-01-66 [18.8K]

Answer:

The p-value of the test statistic from the standard normal table is 0.0017 which is less than the level of significance therefore, the null hypothesis would be rejected and it can be concluded that there is sufficient evidence to support the claim that less than 20% of the pumps are inaccurate.

Step-by-step explanation:

Here, 1304 gas pumps were not pumping accurately and 5689 pumps were accurate.

x = 1304, n = 1304 + 5689 = 6993

The level of significance = 0.01

The sample proportion of pump which is not pumping accurately can be calculated as,

The claim is that the industry representative less than 20% of the pumps are inaccurate.

The hypothesis can be constructed as:

H0: p = 0.20

H1: p < 0.20

The one-sample proportion Z test will be used.

The test statistic value can be obtained as:

Z=\frac{\hat{p}-P}{\sqrt{\frac{P(1-P))}{n}}}\\\\Z=\frac{0.186-0.20}{6993}\\\\Z=-2.927

5 0
3 years ago
A bag with 8 marbles has 8 yellow marbles. A marble is chosen from the bag at random. What is the probability that it is yellow?
konstantin123 [22]

Answer: 1

Step-by-step explanation:

8 yellow / 8 total = 8/8 = 1

8 0
2 years ago
Interest after 1 year:
jasenka [17]

which class is this because I am in 7th class so that's why I can't give

5 0
2 years ago
Read 2 more answers
If \dfrac{x-1}{3}=k 3 x−1 ​ =kstart fraction, x, minus, 1, divided by, 3, end fraction, equals, k and k=3k=3k, equals, 3, what i
earnstyle [38]
For this case we have the following expression:
 (x-1) / (3) = k
 Substituting the value of k = 3 we have:
 (x-1) / (3) = 3
 From here, we must clear the value of x.
 We have then:
 x-1 = 3 * 3
 x-1 = 9
 x = 9 + 1
 x = 10
 Answer:
 
The value of x is given by:
 
x = 10
7 0
3 years ago
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