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asambeis [7]
3 years ago
14

Solve for b: 2(b + 3) = b – 4

Mathematics
2 answers:
Reil [10]3 years ago
8 0

Answer:

b = -10

Step-by-step explanation:

2(b + 3) = b – 4

2b + 6 = b - 4

-b             -b

b + 6 = -4

     -6    -6

b = -10

lions [1.4K]3 years ago
3 0
The answer is; B = (-10)
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Answer:

x₁ = 20     x₂ = 0

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Step-by-step explanation:

According to the problem statement:

Let´s call

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First constraint

Quantity of quizzes at least 15

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Second constraint:

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Third constraint

Average score  at least  85 points

7*x₁  +  5*x₂   ≥  85

General constraint x₁ ≥ 0   x₂ ≥ 0

Objective function z is:

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The model:

z = x₁  + 1,5x₂      to minimize

Subject to

x₁  +  x₂  ≥ 15

15*x₁  +  30*x₂  ≥   300

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Using Atozmax (online solver) we find

x₁ = 20     x₂ = 0

z (min) = 20

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3 years ago
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