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Vlad [161]
3 years ago
12

You are considering a certain telephone company. They charge $0.17 per minute of talking, plus a fixed base monthly fee of $40 .

If M represents the number of minutes you talk in a month, and C is the total monthly charge, which of these is the correct relationship between M and C ?
Mathematics
1 answer:
brilliants [131]3 years ago
8 0

Answer:

C = 40 + 0.17M

Step-by-step explanation:

Total monthly charge = Fixed base fee + charge per minute*total number of minutes

C = 40 + 0.17*M

C = 40 + 0.17M

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malfutka [58]

Answer:

6. r = 21 cm

7. A = 155.5 m²

Step-by-step explanation:

7: Formula for arc length is;

S = (θ/360) × 2πr

We are given;

S = 51 cm

θ = 139°

Thus;

51 = (139/360) × 2π × r

Making r the subject;

r = (51 × 360)/(2π × 139)

r ≈ 21 cm

8) Area of sector is gotten from the formula;

A = (θ/360) × πr²

A = (220/360) × (π × 9²)

A = 155.5 m²

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3 years ago
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Answer:

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3 0
3 years ago
Solve find the value of the following expression for the given value of the variable -10w for w = -6
rusak2 [61]

Answer= 60

-10w =-10 • w, w=-6

-10•-6

60. You don’t include the negative because a negative times a negative= positive

8 0
3 years ago
A piece of work takes 20 labourers to complete in 10 days. how many labourers will complete the same job in 25 days if they work
horrorfan [7]

Step-by-step explanation:

If 20 labourers=10 days

x labourers = 25 days

10x= 25×20

\frac{10x}{10} =  \frac{25 \times 20}{10}

Cancelling out by 10 on both sides

x = \frac{25 \times 2}{1} \\ x = 50

Therefore, it takes 50 labourers to complete the work at the same rate in 25 days.

6 0
3 years ago
What is 6.7 rounded to the nearest whole number
Mariulka [41]
Seven, because 6.7 rounded to the nearest whole number is 7.
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Read 2 more answers
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