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nekit [7.7K]
3 years ago
5

What does 3(13-2a)=-3+a =????

Mathematics
2 answers:
jonny [76]3 years ago
7 0
Again, Jjmarie, please do not ask questions about equations in this format.  Your job is to SOLVE <span>3(13-2a)=-3+a, not to find out "what it equals."

"Solve" means "find the value of a that satisfies the given equation."

</span><span>3(13-2a)=-3+a, when multiplied out, is 39 - 6a = -3 + a

Combining like terms:  -7a = -42, or a = 6.  See?  a equals 6; the equation does not equal 6.  You could say, however, that "</span><span>3(13-2a)=-3+a" is TRUE when a = 6.  It's a conditional statement.</span>
kirza4 [7]3 years ago
3 0
3(13-2a)=-3+a
39-6a=-3+a
42=7a
a=6

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Answer:

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Step-by-step explanation:

Let the popcorn = P

Let the drink = D

2*P + 3*D = 22.25         multiply this equation by 6

12*P + 4D = 39.00

<u>12P + 18D = 133.5</u>          Subtract these two equations

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-14D/-14 = -94.5/-14        Do the division

D = 6.75

=========================

12P  +  4D = 39            Substitute for D

12P + 4*6.75 = 39        Combine

12P + 27 = 39               Subtract 27 from both sides

12P + 27-27=39-27      Collect like terms

12P = 12                        Divide by 12

12P/12 = 12/12

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8 0
3 years ago
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If you buy five of the XYZ bonds with $8 commission for each how much will it cost?
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Answer:

B) 5065

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1) Si se extrae una carta de un paquete de 52 cartas de las cuales 26 son negras (13 espadas A, 2, 3, … , 10, J, Q, K); 13 son t
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1/7 as a decimal

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Answer:

The piecewise function is given as follows;

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Step-by-step explanation:

The given parameters are;

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