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ser-zykov [4K]
3 years ago
5

Students measured their heights. The dot plots display the data.

Mathematics
1 answer:
Vladimir79 [104]3 years ago
6 0

Answer:

1)Yes, because the difference in means ÷ by the larger MAD is greater than 2 MADs.

Step-step explanation:

Difference in means:

70.5 - 64.1

= 6.4

Larger MAD:

1.7

6.4/1.7 = 3.764705882 > 1.7

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I need an answer soon, please! Whoever answers first will get Brainliest!!! Please no troll answers!
Colt1911 [192]

Answer:

x = 8, and y = 12

Step-by-step explanation:

There are 2 variables, so you need 2 equations to form a system of equations in two variables.

The upper left triangle has all angle measures given: 100, 2x + y, 5x + y. We know that the sum of the measures of the angles of a triangle is 180.

First equation:

100 + 2x + y + 5x + y = 180

Simplify:

7x + 2y = 80     (First equation)

Now we see that the upper and lower sides are parallel, so alternate interior angles are congruent. The angles measuring 2x + y and 5x - y are alternate interior angles and are congruent.

Second equation:

2x + y = 5x - y

Simplify:

3x - 2y = 0    (Second equation)

Now we use the first equation and the second equation as a system of simultaneous equations to solve for x and y.

7x + 2y = 80

3x - 2y = 0

Solve the second equation for 2x.

3x = 2y

Now replace 2y in the first equation with 3x.

7x + 3x = 80

10x = 80

x = 8

Replace x with 8 in the second equation.

3(8) - 2x = 0

24 = 2x

x = 12

Answer: x = 8, and y = 12

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2 years ago
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Which point could represent 5 3 ?
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Answer:

the answer is c

Step-by-step explanation:

i just finished the lesson

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Avery and Caden have saved $27,000 towards a down payment on a house. They want to keep some of the money in a bank account that
Thepotemich [5.8K]

Answer:

$6750 in the bank account and $20,250 in the stock fund

Step-by-step explanation:

If B is the money they put in the bank and S is the amount they put in the stock fund, then:

B + S = 27000

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Solving the system of equations:

1.024 (27000 − S) + 1.072 S = 28620

27648 − 1.024 S + 1.072 S = 28620

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B = 27000 − S

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They should put $6750 in the bank account and $20,250 in the stock fund.

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Whats the percent change of 10 gallons to 24 gallons
Nezavi [6.7K]

Answer: 140%

Step-by-step explanation:

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