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Eva8 [605]
3 years ago
12

4. On the way to the movies, you get pulled over for speeding. The ticket costs $120 plus $20 for every mph above the speed limi

t you were driving. If your ticket costs $280, how many mph above the speed limit were you driving? *
20x+280=120
120-20x=280
120x+20=280
120+20x=280
Mathematics
1 answer:
pickupchik [31]3 years ago
6 0

Answer: 120+20x=280

Step-by-step explanation:

280-120=160

160/20=8

The correct answer is the last one, 120+20x=280

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Choose the explicit and recursive formulas for the geometric sequence 45, 135, 405, 1215, 3645, .... PLEASE HELP ASAP
sesenic [268]

Answer:

Option (B)

Step-by-step explanation:

Given sequence is 45, 135, 405, 1215, 3645..........

Since it's a geometric sequence,

Common ratio of each successive term to the previous term

r = \frac{135}{45}=3

First term of the sequence 'a' = 45

Explicit formula of a geometric sequence will be,

a_n=a(r)^{n-1}

a_n=45(3)^{n-1}

Recursive formula of this sequence will be,

a_n=3(a_{n-1}), a_1=45

Therefore, Option (B) will be the answer.

3 0
3 years ago
A store has 20% off sale on pants. With this discount the price of one pair of pants before tax is $15.20. What was the original
Y_Kistochka [10]

Answer:

<h2>Answer :</h2>

The original price is x, so 20% of x, - x, equals the sale price. You can use the equation:

x-.2x=15.20

.8x=15.20

/.8.  /.8

x=19

have a nice day <3

Step-by-step explanation:

5 0
3 years ago
Jim decides to start a small nonprofit business of renting out motor scooters to help out his area residents. He puts in his own
Otrada [13]
First, find the expected number of scooters rented per month:

As the data is symmetrical, E(X) (the expected value) is the middle value. So, on average, 2.5 scooters should be taken per month.

His total costs were 5 * 3000 = $15,000

So, to break even, he needs to make $15,000.

He will be selling for 5 years, or 60 months.

As a result, he needs to make 15000/60 = $250/month

As he is selling 2.5 scooters on average, he needs to rent each for:

$250/2.5 = <u>$100/month</u>
8 0
3 years ago
Read 2 more answers
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KonstantinChe [14]
10 percent of 11.50 is 1.15. Subtract that from 11.50 and you would get 10.35. The sale price would be $10.35
6 0
3 years ago
Terms whose variables are the same are called what?
Ostrovityanka [42]
They are called like terms
8 0
3 years ago
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