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Effectus [21]
3 years ago
9

A mail carrier at the U.S. Postal Service works on Sunday delivering​ high-priority letters and packages. She can deliver 14 ite

ms per hour. The fixed hourly costs​ (vehicle depreciation,​ insurance, etc.) equal ​$47 and the hourly variable costs​ (time and a half​ wages, etc.) total ​$0.90 per item delivered. How much must the U.S. Postal Service charge for each item delivered in order to break even on Sunday​ deliveries?
Mathematics
1 answer:
Kobotan [32]3 years ago
7 0

Answer:

$4.257

Step-by-step explanation:

Given:

Items delivered per hour = 14

Fixed hourly costs​ = ​$47

variable cost = $0.90

Now,

at breakeven point, the profit = 0

or

Total revenue = total cost

let the charge at breakeven point be 'x'

thus,

x × 14 = $47 +  ($0.90 × 14)

or

x × 14 = $47 + $12.6

14x = $59.6

or

x = $4.257

Hence, the breakeven charges are $4.257

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Gnom [1K]

Answer:

7190 cm²

Step-by-step explanation:

Para recortar algumas figuras geométricas, um aluno utilizou uma cartolina de 1 m x 0,8m.

Passo 1

Determine a área de todo o papelão

= Temos dimensões = 1mx0,8m

Área = Comprimento × Largura

= 0,8m²

Nós convertemos para cm²

1 m² = 10.000 cm²

0,8m² = x cm²

Multiplicação cruzada

0,8m² × 10.000 cm² / 1 m²

= 8000 cm²

Passo 2

Sabendo que recortou 2 triângulos, ambos com 20cm de base e 30cm de altura

Encontramos a área de um triângulo

= 1/2 × base × altura

= 1/2 × 20 × 30

= 300cm²

Ele cortou 2 triângulos Portanto, o são dos dois triângulos = 300cm² × 2

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etapa 3

Ele também cortou 2 trapézios ambos com bases de 10cm e 20cm e altura de 7cm.

A área de um trapézio =

1/2 (a + b) h

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= 105 cm²

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A área dos dois trapézios do corte = 105cm² × 2

= 210 cm²

Passo 4

A área total do papelão que foi cortado = 600cm² + 210cm²

= 810 cm²

Etapa 5

Determine em cm² quanto de papelão sobrou.

Isso é calculado como:

Área total do papelão - Área total que foi cortada

= 8000 cm² - 810 cm²

= 7190 cm²

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