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Rina8888 [55]
3 years ago
8

PLS PLS HELP I WILL MARK BRAINLIEST!

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0

Answer:

9.5

Step-by-step explanation:

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The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $380 for 48
andrezito [222]

Answer:

y=0.2x+284

Step-by-step explanation:

Let  x be the distance driven, d-distance and C our constant.

Our information can be presented as:

y=mx+c\\\\450=830x+C\ \ \ \ \ \ \ \ \ eqtn 1\\\\380=480x+C\ \ \ \ \ \ \ \ \ eqtn 2

#Subtracting equation 2 from 1:

70=350x\\x=0.2

Hence the fixed cost per mile driven,x is $0.20

To find the constant,C we substitute x in any of the equations:

450=830x+C\ \ \ \ \ \ \ X=0.2\\\therefore C=450-830\times0.2\\=284

Now, substituting our values in the linear equation:

y=0.2x+284       #y=cost of driving, x=distance driven

Hence the linear equation for the cost of driving is y+0.2x+284

7 0
3 years ago
Paula drinks 1 tenth gallon of milk every morning. How many days will it take Paula to drink 1 gallon of milk,no files just type
elixir [45]

Answer:

10 days

Step-by-step explanation:

Divide 1 gallon by

0.1 gallon per day:

 1 gallon

---------------------- = 10 days

0.1 gallon/day

3 0
3 years ago
1 matrix question help (with picture)
Dominik [7]

Answer:

  a = 9/2

Step-by-step explanation:

In order for the equation to be true, the value of the scalar multiplier must be ...

  15/3 = -10/-2 = 35/7 = 5

So, you're solving ...

  (2/3)a + 2 = 5

  (2/3)a = 3 . . . . . . subtract 2

  a = 9/2 . . . . . . . . multiply by 3/2

3 0
4 years ago
Find the solution of the equation -3x^2+6x-11
disa [49]

Answer:

− 1 ( 3 2 − 6 + 1 1 )

Step-by-step explanation:

7 0
3 years ago
A fingernail grows about 0.1 millimeter eachday how much does a fingernail grow in 90 days
strojnjashka [21]

Answer:

9 mm

Step-by-step explanation:

90*0.1=9

5 0
3 years ago
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