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timurjin [86]
3 years ago
9

Solve the equation: 3y - 7 = 5y + 21? Question 1 options: -20 -14 -7/2 14

Mathematics
2 answers:
GrogVix [38]3 years ago
7 0
Y=-14 first subtract 3y to get -7=2y+21then subtract 21 to get -28=2y then divide 2
Paraphin [41]3 years ago
3 0
3y-7=5y+21
+7. +7
3y=5y+28
-5y -5y
-2y=28
Y= -14
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The students in a college marching band are arranged in rows. The recursive rule f(n) = f(n − 1) + 8 and f(1) = 13 gives the num
anzhelika [568]

Answer:

There are 24 more trumpet players than clarinet players

Step-by-step explanation:

The given information are;

The recursive rule or the number of band members in a row is f(n) = f(n - 1) + 8

Where f(1) = 13

The members of the band players in row 1 = The clarinet players

The members of the band players in row 4 = The trumpet players

Therefore, the number of clarinet players = f(1) = 13

The number of band members in row 2, f(2)  = f(1) + 8 = 13 + 8 = 21

The number of band members in row 3, f(3)  = f(2) + 8 = 21 + 8 = 29

The number of band members in row 4, f(4)  = f(3) + 8 = 29 + 8 = 37

Therefore, given that the trumpet players are in row 4, the number of trumpet players = The number of band members in row 4 = 37 Trumpet players

The difference in the number of trumpet and clarinet = The number of more trumpet players than clarinet players = 37 - 13 = 24 more trumpet players than clarinet players

There are 24 more trumpet players than clarinet players.

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Natali5045456 [20]

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Mhanifa u helped me with this question.... U said it was 25 and its not so why is it wrong
Yanka [14]

Hey I don't know who Mhanifa is but 25 is correct, and I will put the entire explanation to how to get the answer here.

First of all the 2 lines on the left and right side of the triangles are means that those 2 lines are equal and thus forming a isosceles triangle.

This means that the bottom right angle is also 2x+2 degrees.

Now because all 3 angles in a triangle adds to 180 degrees, we can set up equation.

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Now combine like terms

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Then solve, first subtract 5 from both sides.

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X2 is the GCF of this polynomial.
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Answer:

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Step-by-step explanation:

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