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lisabon 2012 [21]
2 years ago
10

A cab company calculates cab fares using the expression 1.50d + 3, where d is the distance traveled in miles. If a passenger has

to pay a $21 fare for a ride, which number from the set {9, 12, 15, 18} is the value of d?
Mathematics
1 answer:
Dovator [93]2 years ago
5 0

Answer:

12

Step-by-step explanation:

⇒ 21 - 3 = 18 = 1.5a

⇒ a = 12

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Answer:

In 10 weeks of time, Brooke would  earn $ 20.

Step-by-step explanation:

Here, according to the table:

The money saved in week 1   =  $ 2   =   $(1  x 2)

The money saved in week 2  =  $ 4   =  $ ( 2 x 2)

The money saved in week 3   =  $ 6  =  $ ( 3 x 2)

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So, by the graph relation, we can see that:

The amount saved in n weeks = ( n x 2) dollars

So, the amount saved by Brooke in 10 weeks is:

Put n =  10, we get:

The money saved  = 2 n = 2 x 10 = $ 20

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Answer:

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Which expression is equivalent to a^3 • b^3 • a^-3 • b?
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