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3 years ago

Hailey Bell bought a flute for $150 and sold

Mathematics

1 answer:

crimeas [40]3 years ago

8 0

Answer:

the profit percentage based on the cost & selling price is 16.67% and 14.29% respectively

Step-by-step explanation:

The computation of the profit percentage based on the cost & selling price is shown below:

The Profit percentage on the cost is

= (Sale price - cost price) ÷ (cost price) × 100

= ($175 - $150) ÷ ($150) × 100

= 16.67%

ANd, the profit percentage based on the selling price is

= (Sale price - cost price) ÷ (selling price) × 100

= ($175 - $150) ÷ ($175) × 100

= 14.29%

Hence, the profit percentage based on the cost & selling price is 16.67% and 14.29% respectively

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On Monday you sent x number of text messages. On Tuesday you sent twice as many. On Wednesday you sent 12 more texts than you se

Lady bird [3.3K]

Answer:

Expression representing number of text messages sent on Tuesday = 2x , where x = text messages sent on Monday

Step-by-step explanation:

Let number of messages sent on Monday = x

So, number if messages sent on Tuesday = 2 times x = 2x

Number of texts sent on Wednesday = 12 more than texts sent on Tuesday = 2x + 12

Number of texts sent on Thursday = Half the texts sent on Wednesday = 1/2 (2x + 12) = x + 6

3 0

3 years ago

Read 2 more answers

The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,608 kilowatt hours (kWh

Marat540 [252]

Answer:

The calculated value Z = 1.4460 < 1.96 at 0.05 level of significance.

The null hypothesis is accepted

A local power company believes that residents in their area use more electricity on average than EIA's reported average

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 10,608 kWh of electricity this year.

Given that the size of the sample n = 187

Given that mean of sample x⁻ = 10737 kWh

The Standard deviation of the Population = 1220kWh

Level of significance = 0.05

The critical value (Z₀.₀₅)= 1.96

Step(ii):-

Null Hypothesis: H₀:μ > 10608 kWh

Alternative Hypothesis: H₁: μ < 10608kWh

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{10737- 10608 }{\frac{1220}{\sqrt{187} } }$

Z = 1.4460

Final answer:-

The calculated value Z = 1.4460 < 1.96 at 0.05 level of significance.

The null hypothesis is accepted

A local power company believes that residents in their area use more electricity on average than EIA's reported average.

3 0

3 years ago

HELP Whats the value of X ??

klio [65]

Depending what your solving X for what type of equation because it has different rules

4 0

3 years ago

For brainliest please help!

Advocard [28]

Answer:

negative multiples of 3 less than -3

Step-by-step explanation:

if m <9, then

m ={8,7,6,5,4,3,2,1,0,-1,-2,....,..........}

And |6m-55|

So is said that,

when, m= 8

6(8)-55=-6

when, m=7

6(7)-54=-12

when, m = 6

6(6)-54=-18

Since the trend is negative multiples of 3 less than -3

this is my answer

8 0

3 years ago

Is -55.505 a rational number?

earnstyle [38]

Answer:

yes

Step-by-step explanation:

Any number that can be written in p/q from is a rational number

4 0

3 years ago