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Lemur [1.5K]
3 years ago
10

In the past month, Eric rented 1 video game and 6 DVDs. The rental price for the video game was $2.20. The rental price for each

DVD was 3.70 What is the total amount that Eric spent on video game and DVD rentals in the past month?​
Mathematics
2 answers:
snow_lady [41]3 years ago
3 0
The total amount of money Eric spent is $24.4 dollars! Hope this helps!
rusak2 [61]3 years ago
3 0
Mdidisisjsjdjdjdjdjdjdjx
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Help!!! il give brainlist​
Elden [556K]

Answer:

Step below

Step-by-step explanation:

Line pass (-3 , 2) and slope = 4

y intercept  (b) = y - mx = 2 - 4*(-3) = 14

y intercept: (0 , 14)

equation: y = 4x + 14

Any point on this line could be answer. x=1, y=18 (1,18) (2,22), (3,26) .....

4 0
2 years ago
A motel clerk counts his​ $1 and​ $10 bills at the end of the day. He finds that he has a total of 55 bills having a combined mo
vfiekz [6]

Answer

39 bills of 1$

16 bills of 10$

Step-by-step explanation:

x-nr of $1

y-nr of $10

x*1+y*10=199

x+y=55 , x=55-y

so  I use the substitution method

(55-y)*1+10y=199

55+10y-y=199

-55            -55

9y=144

y=144/9

y=16

so x=55-16

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4 0
3 years ago
Read 2 more answers
Find the slope of the line that contains (−9, 1) and (3, 6).
Neko [114]

Answer:

5/12

Step-by-step explanation:

slope is  \frac{1y-2y}{1x-2x}

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6 0
3 years ago
of a parabolic arch and is to have a span of 100 feet. The height of the arch a distance of 40 feet from the center is to be 10
JulsSmile [24]

Answer:

y = -0.11x^2 + 1.111x

y = 28 ft  .... Height at center

Step-by-step explanation:

Given:-

- The span of the arc is = 100 ft

- The height of the arch is 40 ft at 10 ft from center.

Find:-

- The equation of parabolic arch and the height of the arch at center.

Solution:-

- We will take the height y as a function of width x of the parabolic arch. The general equation of the arch is such that it passes through origin. The equation is given in the form as:

                               y = f(x) = ax^2 + bx

Where,

           a, b, and c are constants to be determined.

- We will use the condition i.e the span of entire arch is 100 ft. So we could say that y = 0 for x = 100 ft. Then we have:

                               0 = f(100) = a(100)^2 + b(100)   ..... 1

- Using second condition i.e y = 10 ft at 40 ft from center. Since, due to symmetry we know that center lies at x = 50 ft. Then y = 10 ft at x = 10 ft. The condition can be expressed in the form:

                               10 = f(10) = a(10)^2 + b(10)  ..... 2

- Solving the 2 Equations simultaneously, we have:

                               0 = a(100)^2 + b(100)

                               10*10 = a*10*(10)^2 + b(10)*10

                               100 = a(10)^3 + b(100)

- Subtract both equations:

                               100 = a*(10^3 - 100^2)

                               a = 100 / ( 1000 - 10000)

                               a = -0.11

- Then using a = -0.11 evaluate b:

                               -1.11 + 10b = 10

                                b = 11.11 / 10 = 1.111

- The equation of the parabola is:

                                y = -0.11x^2 + 1.111x                                

-The height of the arch at center where x = 50 ft.

                                y = -0.11(50)^2 + 1.111(50)

                                y = -27.5 + 55.5

                                y = 28 ft                                                        

- The height of the parabolic arch at center is given as y = 28 ft.

4 0
3 years ago
Find an equation of the circle that has center (1, -1) and passes through (5, -6).
Sloan [31]

Answer:

Step-by-step explanation:

(x-1)²+(y+1)²=41

6 0
3 years ago
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