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Gwar [14]
3 years ago
15

An item is regularly priced at $85. Tom bought it at a discount of 15% off the regular price

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
4 0

Answer:

$72.25

Step-by-step explanation:

85 x (1-.15) = answer

85 x .85 = 72.25

mamaluj [8]3 years ago
3 0

Answer:

72.25

Step-by-step explanation:

85 - 15% = 72.25

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dolphi86 [110]

Answer:

x = 16

Step-by-step explanation:

From the first statement, we can say that:

Angle A is equal to angle D,

Angle B is equal to and E.

Since measure of Angle B and E are given and they are equal, we equate them and solve for x.

B=E\\x+15=6x-65\\15+65=6x-x\\80=5x\\x=\frac{80}{5}\\x=16

Hence x = 16

4 0
3 years ago
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Brums [2.3K]

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Step-by-step explanation:

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Please help me find the answer, i will friend you
snow_lady [41]
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3 years ago
Evaluate |-6| + 2|-4| - 3|6|
aleksley [76]
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7 0
3 years ago
33. Suppose that the scores on a statewide standardized test are normally distributed with a mean of 78 and a standard deviation
tino4ka555 [31]

Given the scores on a statewide standardized test are normally distributed

Mean = μ = 78

Standard deviation = σ = 3

Normalize the data using the z-score by using the following formula and chart:

z=\frac{x-\mu}{\sigma}

Estimate the percentage of scores of the following cases:

(a) between 75 and 81

so, the z-score for the given numbers will be:

\begin{gathered} 75\rightarrow z=\frac{75-78}{3}=\frac{-3}{3}=-1 \\ 81\rightarrow z=\frac{81-78}{3}=\frac{3}{3}=1 \end{gathered}

As shown, the percentage when (-1 < z < 1) = 68%

(b) above 87

87\rightarrow z=\frac{87-78}{3}=\frac{9}{3}=3

The percentage when (z > 3) = 0.5%

(c) below 72

72\rightarrow z=\frac{72-78}{3}=\frac{-6}{3}=-2

The percentage when (z < -2) = 0.5 + 2 = 2.5%

(d) between 75 and 84

\begin{gathered} 75\rightarrow z=\frac{75-78}{3}=-\frac{3}{3}=-1 \\ 84\rightarrow z=\frac{84-78}{3}=\frac{6}{3}=2 \end{gathered}

The percentage when ( -1 < z < 2 ) = 68 + 13.5 = 81.5%

3 0
1 year ago
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