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sladkih [1.3K]
3 years ago
15

Telephone plan consist of a monthly fee of $20 plus $.20 per minute for long distance calls made write an equation for the total

cost, C, when N minutes are used for long distance calls C =
Mathematics
1 answer:
HACTEHA [7]3 years ago
5 0

Answer:

C=20+0.20N

Step-by-step explanation:

Fixed monthly fee = $20

Amount charged per minute for long distance calls = $0.20

C denotes total cost such that N minutes are used for long distance calls.

Amount charged for N minutes for long distance calls =0.20N

Therefore, an equation for the total cost, C, when N minutes are used for long distance calls is C=20+0.20N

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nataly862011 [7]

A product of two (or more) factor can be zero if and only if at least one of the factors is zero.

In other words, you cannot multiply two non-zero real numbers, and have zero as a result.

So, if we want the product of these two factors to be zero, at least one of them has to be zero.

The first factor is zero if

x-2 = 0 \iff x=2

The second factor is zero if

x+5 = 0 \iff x=-5

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3 years ago
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Vsevolod [243]

The straight line distance from the starting point is 41 miles.

<u>Explanation:</u>

Given:

Distance covered towards north, n = 9 miles

Distance covered towards east, e = 40 miles

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If we imagine this, then the route forms a right angle triangle

where,

n is the height

e is the base

x is the hypotenuse

Using pythagoras theorm:

(x)² = (n)² + (e)²

(x)² = (9)² + (40)²

(x)² = 1681

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5 0
3 years ago
For questions 1 - 2, use the following functions:
natita [175]

Answer:

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Step-by-step explanation:

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mr_godi [17]

Answer:

6

Step-by-step explanation:

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4/2=2

So you need to multiply 3 by 2 to find the match.

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The ratio is 4:6, so Jason uses 6 teaspoons of baking powder.

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