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notka56 [123]
2 years ago
15

A survey of 140 freshmen business students at a local university produced the results listed below. How many students took only

psychology?
33 took history;
42 took science;
39 took psychology;
19 took history but not science;
12 took science and psychology;
10 took history and psychology;
2 took all three
Mathematics
1 answer:
Hunter-Best [27]2 years ago
8 0
15

A total of 39 took psychology. 12 of those took that and science and another 10 of those took that and history. 2 people took all three. 12+10+2 = 24 students who took psychology along with another class. To find the number of students who took ONLY psychology, you would take 39 and subtract 24, which leaves you with 15.
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x = 38 students
4 0
2 years ago
Fiona divided 3x2 + 5x – 3 by 3x +2. The expression represents the remainder over the divisor. x + 1 + What is the value of a?
grigory [225]
                    x + 1
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3x+2 I 3x² +5x -3
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8 0
3 years ago
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How can I find the least common multiple of two or more numbers ?
Anettt [7]

Example: 30 and 42

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8 0
3 years ago
Find the area of the trapezoid
Alexandra [31]

Answer:

\sf area \  of \ trapezoid \ =375 \ mm^2

Explanation:

\sf area \  of \ trapezoid \ = \dfrac{1}{2} * ( base \  1 + base \ 2 ) * height

using the formula:

\sf area \  of \ trapezoid \ = \dfrac{1}{2} * ( 14+ 36 ) * 15

\sf area \  of \ trapezoid \ = \dfrac{1}{2} * ( 50 ) * 15

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5 0
2 years ago
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Need help please!!!!!
Yanka [14]

Answer:

Side 1 = 8, side 2=6, side 3=3 1/3 or 10/3

Step-by-step explanation:

We can set up a proportion comparing the sides of the original triangle to the new triangle.

The original triangle has sides 12, 9, and 5. The new triangle has sides 8, e, and f (use whatever letters you like, it doesn't matter, but for me, e is the side with the middle length and f is the side with the shortest length.

We can write 3 ratios, with the length of the new triangle over the length of the old triangle.

8/12  e/9  f/5

To figure out e and f, put each ratio equal to 8/12.

<u>8  </u> =  <u>e</u>  Then multiply both sides of the equation by 9 and get <u>72 </u> = e, 6=e.

12     9                                                                                              12

<u>8  </u> =  <u>f </u> Then multiply both sides of the equation by 9 and get <u>40 </u> = f, <u>10</u>=f.

12     5                                                                                              12          3

10/3 can be rewritten as 3 1/3.

6 0
2 years ago
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