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s344n2d4d5 [400]
3 years ago
10

What is 7 less than 12.09?

Mathematics
1 answer:
Brums [2.3K]3 years ago
5 0

Answer: 5.09

Step-by-step explanation: 12.09 - 7.00

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Plese help i need the answer
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Using linear function concepts, it is found that:

a) The initial value is of 3 and the rate of change is of 20.

b) The rate of change means that for <u>each hour, the cost increases by 3 Dhs</u>, while the initial value means that <u>a flat fee of 20 Dhs is paid</u>.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and also can be considered as the initial value.

In this problem, the function that gives the charge C for renting a bicycle for h hours is:

C(h) = 3h + 20

Item a:

Comparing to the standard function, we have that:

  • The initial value is of 3 and the rate of change is of 20.

Item b:

The rate of change means that for <u>each hour, the cost increases by 3 Dhs</u>, while the initial value means that <u>a flat fee of 20 Dhs is paid</u>.

You can learn more about linear function concepts at brainly.com/question/24808124

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3 years ago
You have $50 and are buying some movies on DVDs that cost $15 each. Write an expression that shows how
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Answer:

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Step-by-step explanation:

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Each DVD is 15 dollars, so for every dvd(m) it is 15 dollars.

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a

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