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monitta
3 years ago
10

The school band is scheduled to march in the annual parade, but the band’s starting point is changed the day before the parade.

The band director calls three band members. Each band member calls three other band members. Then these band members each call three members. How many band members, including the band director, are notified of the new starting point?
A. 12 members
B. 13 members
C. 20 members
D. 40 members
Mathematics
1 answer:
topjm [15]3 years ago
8 0
I think that it is D
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Given:
adults = x
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x + (7x + 1) + [(7x +1)/2] = 82
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2x + 14x + 2 + 7x + 1 = 82 * 2
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x = 7

adults = x = 7
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A bag contains yellow marbles and blue marbles, 73 in total. The number of yellow marbles is 7 more than 5 times the number of b
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number of yellow marbles=62.

Step-by-step explanation:

It is given that in a bag there are yellow marbles and blue marbles and the total number of marbles=73.

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Now, Total number of marbles= number of yellow marbles+number of blue marbles.

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Using the diagram attached below, we can see two straight lines intersecting each other to form two pairs of vertical angles:

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