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ivolga24 [154]
3 years ago
14

Your DVD membership costs $16 per month for 10 DVD rentals. Each additional DVD rental is $2. a. Write an equation in two variab

les that represents the monthly cost of your DVD rentals. b. Identify the independent and dependent variables. c. How much does it cost to rent 15 DVDs in one month?
Mathematics
1 answer:
Anarel [89]3 years ago
5 0

Answer:

a. C(x) = $16, if 0 ≤ x ≤ 10

   C(x) = 2x - 4 if x > 10

b. Independent: Number of DVD rentals

   Dependent: Monthly cost of rentals

c. $26

Step-by-step explanation:

a. The cost (C) of renting 'x' DVDs is given by:

If 10 ≤ x ≤ 10

C(x) = $16

If  x > 10

C(x) = 16 + 2(x-10)

C(x) = 2x - 4

b. Since the cost depends on the number of DVD rentals, cost is the dependent variable and number of DVD rentals is the independent variable.

c. For x = 15:

C(15) = 2*15 - 4

C(15) = $26

It costs $26 to tent 15 DVDs in one month

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Answer:

0.920

I think this is right

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which fraction is greater 3/12 or 2/9? I just can't seem to figure this one out I just need a little help.
ruslelena [56]

Answer:

Step-by-step explanation:

3/12 and 2/9

LCM=36

3/12=9/36 AND 2/9= 8/36

9/36 IS GREATER

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In a store, 1 can of soup costs $1.80. The store also sells a pack 6 cans of soup. A customer who buys 1 pack saves 15% compared
Likurg_2 [28]

Answer:

\$1.62

Step-by-step explanation:

Let

x-----> the cost of one pack of 6 cans of soup

step 1

Find the cost of 6 cans of soup

6(1.80)=\$10.8

step 2

Find the cost of one pack of 6 cans of soup

100\%-15\%=85\%=85/100=0.85

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step 3

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3 years ago
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3 years ago
The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angles is five times
erastova [34]

Answer:

first angle be 30°

second angle be 70°

third angle be 80°

Step-by-step explanation:

first angle be x

second angle be y

third angle be z

x+y+z=180

given, y+z = 5x; z=5x-y

also, z=y+10

5x-y = y+10

5x= 10+y+y = 10+2y

x= (10+2y)/5

x+y+z=180

(10+2y)/5 + y + y+10 = 180

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z=y+10 =70+10= 80°

5x= (10+2y) = 10+2(70) = 10+140= 150

x = 150/5 = 30°

6 0
3 years ago
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