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RideAnS [48]
3 years ago
14

Conner works 8 1/2 hours and earns $80.75. If Zoey makes an hourly rate that is proportional and earns $118.75, how many hours d

id she work? Plz show work:)
A. 8 1/2
B. 10
C. 12 1/2
D. 13
Mathematics
1 answer:
Reptile [31]3 years ago
8 0

Answer:

Step-by-step explanation:

In 8 hours 30m Corner earns $80.75

In how many hours Zoey earns $118.75

Hours Zoey works= 510*118.75/80.75(converted 8hours into minutes by multiplying with 60)

Solving we get 12 hours 30m.

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Rob cuts grass as a job. A neighbour asked Rob to give a quote for his backyard. Rob noticed that the yard was a rectangle shape
Montano1993 [528]

Answer: 11780.9316

Step-by-step explanation:

just do 16.2 times 6.7 times 16.2 times 6.7

6 0
3 years ago
Domain and Range NAME: MR. Q State the domain and range for each graph and then tell if the graph is a function (write yes or no
viva [34]

Answer:

1) Domain = -3 ≤ x ≤ 2

Range = -4 ≤ y ≤ 5

Function? No

Step-by-step explanation:

From the given graph, we have;

The domain of the dot plot = -3 ≤ x ≤ 2

The range of the dot plot = -4 ≤ y ≤ 5

From the given data plot, we have that a straight line joining the data points is in the form of an arrow head with one value of the input (independent) variable, 'x', giving two values of the output (dependent) variable, 'y', such as the input, x = 1, gives two output, y = -2, and y = 3

Therefore, the relation is not a function as one input value produces two output values.

6 0
3 years ago
Which is greater 3/5 or 3/3
Svetllana [295]
3/3. Need an explanation
6 0
3 years ago
A car company claims that its new car, the GoFast2000, has a gas mileage of 35 miles per gallon ( mpg ). A consumer group suspec
I am Lyosha [343]

Answer:

<em>H₀</em>: <em>μ</em> = 35 mpg vs. <em>Hₐ</em>: <em>μ</em> < 35 mpg.

A <em>t</em>-test statistic should be used.

The company's claim is correct.

The true mean gas mileage of the new cars is 35 mpg.

Step-by-step explanation:

The consumer group can perform a test for single mean to determine whether the is less than 35 mpg or not.

The hypothesis can be defined as follows:

<em>H₀</em>: The true mean gas mileage of the new cars is 35 mpg, i.e. <em>μ</em> = 35 mpg.

<em>Hₐ</em>: The true mean gas mileage of the new cars is less than 35 mpg, i.e. <em>μ</em> < 35 mpg.

The information provided is:

<em>n</em> = 50

\bar x = 34.8 mpg

As there is no information abut the population standard deviation then we would have to compute the sample standard deviation to estimate the value of <em>σ</em>.

Since the sample standard deviation will be used, a <em>t</em> test statistic would have to be computed.

The test statistic is given by:

t=\frac{\bar x-\mu}{s/\sqrt{n}}

Assumptions for one sample <em>t</em>-test are:

  • Independent samples
  • The population is normally distributed
  • The sample size should be large enough to make the assumption of normality.

The significance level of the test is, <em>α</em> = 0.05.

The <em>p</em>-value of the test is 0.324.

The decision rule based on <em>p</em>-value is that the null hypothesis will be rejected if the <em>p</em>-value is less than the level of significance and vice-versa.

The <em>p</em>-value = 0.324 > <em>α</em> = 0.05.

As the <em>p</em>-value is more than the significance level the null hypothesis will not be rejected.

Thus, concluding that the company's claim is correct.

The true mean gas mileage of the new cars is 35 mpg.

6 0
3 years ago
The two boxes shown are cuboids.
kramer

Answer:

250 small cubes

Step-by-step explanation:

Because the volume of the bigger cube 30000

divided by the volume of the smaller cube 120 is 250

30000/120=250

6 0
2 years ago
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