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NikAS [45]
1 year ago
12

there are 30 students on the debate team and 20 students on the math team. ten students are on both the math team and debate tea

m. what is the total number of students on either team?
Mathematics
2 answers:
alexandr1967 [171]1 year ago
8 0
The answer would be 40 because 30+20-10=40
Rufina [12.5K]1 year ago
8 0

Answer:

The solution is 40.

n(D U M) = n(D) + n(M) - n(D ∩ M)

= 30 + 20 - 10

= 40 students

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Juanita wants to perform row operations on the augmented matrix for the system below (See pictures). Which matrix should Juanita
Artist 52 [7]

Answer:

The second option

Step-by-step explanation:

The given system of equation is

x+2y=3

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y-2z=-3

The augment matrix is obtained by combining the coefficient matrix with the constant matrix to obtain;

\left[\begin{array}{cccc}1&2&0&|3\\-1&1&1&|2\\0&1&-2&|-3\end{array}\right]

Note that the absence of z, in the first equation means its coefficient is zero. The same thing applies to x in the last equation.

The correct choice is the second option.

5 0
2 years ago
Parallelogram A B C D is shown. Sides A B and D C are parallel. The length of A B is 4 q minus 8 and the length of D C is q + 4.
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Answer:

q = 4

Step-by-step explanation:

4q - 8 = q + 4

3q - 8 = 4

3q = 12

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**Opposite sides in a parallelogram are congruent.

8 0
2 years ago
Read 2 more answers
H(y) models the leading number of home runs for season y on the National League between the years 2000-2010, according to the ta
alexandr1967 [171]

Answer:

Integers

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Step-by-step explanation:

3 0
2 years ago
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The scale is 0.25 cm: 15 km. FInd the actual distance corresponding to each map distance.
sweet-ann [11.9K]
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Misha Larkins [42]

Answer:

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Step-by-step explanation:

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x -----> the number of days

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we know that

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b is the y-coordinate of the y-intercept (initial value)

In this problem we have

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substitute the values

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2 years ago
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