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Olenka [21]
3 years ago
15

What is the value of x in the following system Y=3x-5 and 6x+3y=15

Mathematics
1 answer:
beks73 [17]3 years ago
7 0

Answer:

hope this helped

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In an accounting class of 200 students, the mean and standard deviation of scores was 70 and 5, respectively. Use the empirical
lina2011 [118]

Answer:

a. About 64

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 70

Standard deviation = 5

Use the empirical rule to determine the number of students who scored less than 65 or more than 75?

65 = 70 - 5

So 65 is one standard deviation below the mean

75 = 70 + 5

So 75 is one standard deviation above the mean.

By the Empirical Rule, 68% of the students scored between 65 and 75. The other 100-68 = 32% scored less than 65 or more than 75.

Out of 200, that is

0.32*200 = 64

So the correct answer is:

a. About 64

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3 years ago
What is 4.5 yd times 7.8 yd?
bixtya [17]
4.5 * 7.8 = 35.1 yards.
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Identify a pair of similar triangles How can you tell the difference between Side-Side-Side, Side-Angle-Side, Angle-Side-Angle,
liberstina [14]

Step-by-step explanation:

SSS

SSS stands for "side, side, side" and means that we have two triangles with all three sides equal. For example: is congruent to: (See Solving SSS Triangles to find out more) If three sides of one triangle are equal to three sides of another triangle, the triangles are congruent

SAS

The Side Angle Side postulate (often abbreviated as SAS) states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then these two triangles are congruent.

ASA

ASA stands for "angle, side, angle" and means that we have two triangles where we know two angles and the included side are equal. For example: is congruent to: (See Solving ASA Triangles to find out more)

AAS

The Angle Angle Side postulate (often abbreviated as AAS) states that if two angles and the non-included side one triangle are congruent to two angles and the non-included side of another triangle, then these two triangles are congruent.

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8tbsp. 2tsp.<br> x 15<br> _________
uysha [10]
The answer is 130 tablespoons
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Please Help me!!!<br><br> The question is: <br> Which graph shows the solution to y &gt; x – 8?
FinnZ [79.3K]

Answer:

the answer is B

Step-by-step explanation:

7 0
3 years ago
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