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kipiarov [429]
3 years ago
14

Bethany sells roses and petunias. The expression 3r+2.5p3r+2.5p3, r, plus, 2, point, 5, p gives the cost (in dollars) of rrr ros

es and ppp petunias.
What is the cost of 777 roses and 888 petunias?
Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0

Answer:

I think the equation is written as 3r + 2.5p, where r is the number of roses and p is the number of petunias. To find the total cost, substitute 777 to r and 888 to p. The total cost would then be:

Total Cost = 3r + 2.5p

Total Cost = 3(777) + 2.5(888)

Total Cost = 4551

The total cost would be $4,551.

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<h3>¿Qué es la distribución binomial?</h3>

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

Los parámetros son:

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  • p es la probabilidad de éxito en un ensayo
  • x es el número de éxitos

En este problema, hay que:

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La probabilidad de que el guardia de seguridad encuentre al menos uno en la base militar restringida es dada por:

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En que:

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P(X = 0) = C_{10,0}.(0.2)^{0}.(0.8)^{10} = 0.1074

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Hay una probabilidad de 0.8926 = 89.26% de que el guardia de seguridad encuentre al menos uno en la base militar restringida.

Puede-se aprender más a cerca de la distribución binomial en brainly.com/question/25132113

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