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leva [86]
3 years ago
10

Evaluate the expression: a(b – c) if a = -8, b = 12, and c = 4

Mathematics
2 answers:
kow [346]3 years ago
8 0
-8(12-4)=
-8(8)=
-64

The answer is -64

Hope that works!!
miv72 [106K]3 years ago
5 0
<span> a(b – c) if a = -8, b = 12, and c = 4
</span><span> = -8(12 – 4) 
= -8 (8)
= -64</span>
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Answer:

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Please help me with 2 and 3 and use the elimination process!
grandymaker [24]

Answer:

2. Judy =$5

Ben= $4

Step-by-step explanation:

2. Let Judy =  x  and Ben =  y

8x + 10y = 80

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Solve these simultaneous equations.

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3. 24 quarters and 16 dimes

Step-by-step explanation:

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                                    Value      Value

Type        Number       of             of

of             of                EACH      ALL

coin         coins            coin        coins

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dimes         x              $0.10       $0.10x

quarters      y             $0.25      $0.25y

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Get rid of decimals by multiplying every term by 100:

10x + 25y = 760

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x + y = 40

10x + 25y = 760

         

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x + y = 40

y = 40 - x

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      10x + 25(40 - x) = 760

      10x + 1000 - 25x = 760

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8 0
3 years ago
3x - 7y = -40 <br><br> 3x - 2y = -4
eimsori [14]

Answer:

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Step-by-step explanation:

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Answer:

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