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Lerok [7]
3 years ago
14

The regular price of a T-shirt is $14.80. Today, T-shirts are on sale for 0.8 of their regular price. How much will Elias spend

if he buys 6 T-shirts today?
Mathematics
2 answers:
uysha [10]3 years ago
6 0
0.8 is 80% off so 80% off of $14.80 is $2.96 since he is buying six shirts you times $2.96 by 6 and you get $17.76. I hope I helped, have a good day. :)
lilavasa [31]3 years ago
4 0

its actually $71.04

0.8=4/5 (simplified)

4/5 of 14.80= 11.84

11.84 x 6= 71.04

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In 2017, the price of gas in a certain state changed from $2.24 to $2.56. Calculate the percent of change increase in the price
Eva8 [605]

Answer:

12.5%

Step-by-step explanation:

2.56-2.24 =0.32

By using the rule of three we can find the answer.

we have that 2.56 = 100% so we have to find what percentage 0.32 represents

(0.32*100)/2.56 = 12.5

8 0
2 years ago
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According to the last census (2010), the mean number of people per household in the United States is LaTeX: \mu = 2.58 Assume a
Veseljchak [2.6K]

Answer:

P(2.50 < Xbar < 2.66) = 0.046

Step-by-step explanation:

We are given that Population Mean, \mu = 2.58 and Standard deviation, \sigma = 0.75

Also, a random sample (n) of 110 households is taken.

Let Xbar = sample mean household size

The z score probability distribution for sample mean is give by;

             Z = \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

So, probability that the sample mean household size is between 2.50 and 2.66 people = P(2.50 < Xbar < 2.66)

P(2.50 < Xbar < 2.66) = P(Xbar < 2.66) - P(Xbar \leq 2.50)

P(Xbar < 2.66) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } < \frac{2.66-2.78}{\frac{0.75}{\sqrt{110} } } ) = P(Z < -1.68) = 1 - P(Z  1.68)

                                                              = 1 - 0.95352 = 0.04648

P(Xbar \leq 2.50) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } \leq \frac{2.50-2.78}{\frac{0.75}{\sqrt{110} } }  ) = P(Z \leq  -3.92) = 1 - P(Z < 3.92)

                                                              = 1 - 0.99996 = 0.00004  

Therefore, P(2.50 < Xbar < 2.66) = 0.04648 - 0.00004 = 0.046

7 0
3 years ago
Graph the line containing the point P and having slope m.<br><br> P=(1,8); m=0
Alekssandra [29.7K]
The slope is 0 so it's a horizontal line parallel to the x-axis. All the values of y are the same. The line passes through the point (1,8), so y=8.

8 0
2 years ago
Determine whether each equation is a linear equation. Write yes or no. If yes, write the equation in standard form. y = 4x + x
Step2247 [10]

Answer:

The answer is y = 5x

Step-by-step explanation:

Yes, this equation is a linear equation.

because it has degree 1

<u>Standard </u><u>Form</u>

y = 4x + x

y = 5x

Thus, The answer is y = 5x

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5 0
2 years ago
What’s the answer to this please? Thanks!
Serjik [45]

Answer:

70

  1. beacuse (2x-35)+75=180
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  3. 2x=140
  4. x=70
3 0
3 years ago
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