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mr Goodwill [35]
3 years ago
9

The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she stream

s in a month. What is the value and meaning of f(18)?
Mathematics
1 answer:
svetoff [14.1K]3 years ago
8 0
I hope this helps you



x=18



f (18)=1,50.18+12,50


f (18)=27+12,50


f (18)=39,50
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1. How many solitions does this equation have -4(5-3x)=12x+20
Rom4ik [11]

Answer:

1. no solutions

2. one solution

Step-by-step explanation:

1. -4(5-3x)=12x+20

-20+12x=12x+20

-40+12x=12x

-40=0?????

So no solutions.

2. 3x+7(x+1)=2(6x+5)+2

3x+7x+7=12x+10+2

10x+7=12x+12

-2x+7=12

-2x=5

x=-5/2

So one solution.

6 0
3 years ago
Read 2 more answers
100 POINTS!!! Which statement about rational numbers is correct?
Natasha_Volkova [10]

Answer: Rational numbers have decimal expansions that repeat or terminate.

Step-by-step explanation:

The explanation of this is the non-terminating but repeating decimal expansion means that although the decimal representation has an infinite number of digits, there is a repetitive pattern to it. The rational number whose denominator is having a factor other than 2 or 5, will not have a terminating decimal number as the result.

6 0
2 years ago
4,2,1,...<br> Find the 9th term.
harkovskaia [24]

Answer: 0.015625

Step-by-step explanation:

i noticed the pattern. it is getting divided by 2 each time. so, i just divided each new number by 2 and got 0.015625.

8 0
3 years ago
HELP PLEASE
iragen [17]

Answer:

third number = 4,

equation of y, y = 5x - 11

equation of n, n = 4x

equation of x, n + x + y =19

Step-by-step explanation:

so lets write evertything as a n equation. n + x + y =19. N is the first number, x is the second number, and y is the third number. We will write the equation for y as follows 5x - 11. N will be four times the second number, so 4x. If substitute the values for out equation for x we will find what x equals to. So (4x) + x + (5x - 11) = 19

10x = 30

x = 3.

Then you substiute the answer for x in the equation for y. This will get you 5(3) - 11

15 - 11

4 = third number

4 0
3 years ago
Please help with this question!!
Dahasolnce [82]
To get from 3 to 4 it’s 4/3
so 5.2 x 4/3 = 6.9 (1 d.p.)
6.9 - 5.2 = 1.7
X= 1.7
sorry If this is wrong :/
4 0
3 years ago
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