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RUDIKE [14]
3 years ago
14

Do you guys know the answers??

Mathematics
2 answers:
Mkey [24]3 years ago
7 0

Answer:

Hope this helps!

Step-by-step explanation:

1.  9.38

2. 9.80

3. 11

4. 9.85

5.  15.23

6.  15

7. 9.95

8. 27

9. 26.96

10. 14.14

sergij07 [2.7K]3 years ago
5 0

Step-by-step explanation:

on the picture

if it's helpful ❤❤❤❤❤

THANK YOU.

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Marcos purchases a top-up card for his pre-paid cell phone. His remaining balance, B, can be modeled by the equation B=40−0.1n,
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Answer:

Part a) When Marcos purchased the card, the balance on the card was $40

This is the B-intercept

Part b) Mark will have spoken 400 minutes when he runs out of money

This is the n-intercept

part c) The slope of the equation is -0.1 and the units are dollars per minute

Step-by-step explanation:

we have

B=40-0.1n

where

B is balance in dollars on the card

n is the number of minutes

Part a) How much money was on the card when he purchased it? $______. Which intercept is this? B-intercept or N-intercept?

we know that

The B-intercept is the value of B when the value of n is equal to zero

so

For n=0

substitute and find the value of B

B=40-0.1(0)=\$40

therefore

When Marcos purchased the card, the balance on the card was $40

This is the B-intercept

Part b) How many minutes will he have talked when he runs out of money? $_____. Which intercept is this? B-intercept or n-intercept ?

we know that

The n-intercept is the value of n when the value of B is equal to zero

so

For B=0

substitute and find the value of n

0=40-0.1n

0.1n=40

n=400\ minutes

therefore

Mark will have spoken 400 minutes when he runs out of money

This is the n-intercept

Part c) What is the slope of this equation?________ . What are the units on the slope? Minute , dollars per minute ,minutes per dollars or dollars ?

we have

B=40-0.1n

This is is the equation of the line into slope intercept form

m=-0.1\frac{\$}{minute} -----> slope of the equation

b=40 ------> the B-intercept

The units of the slope are dollars per minute

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3 years ago
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Answer:

I think it is B.

Step-by-step explanation:

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Step-by-step explanation:

See the steps below:)

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