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vlabodo [156]
3 years ago
10

Molly can drive her car 112 miles on 4 gallons of gas and 182 miles on 6.5 gallons.how many gallons of gas will she need to driv

e 420 miles?
Mathematics
1 answer:
sleet_krkn [62]3 years ago
6 0
Given the data above, we can calculate the rate of the driving of the car. rate is equal to miles driven per gallon which is computed to be 28 miles per gallon. In this case,  if we are asked to determine the number of gallons to drive 420 miles, then 420 miles / 28 miles per gallon equal to 15 gallons. 
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Halle la ecuación del eje x y la ecuación del eje y, usando dos puntos que se encuentren sobre los mismos.
lisov135 [29]

Una linea recta ( cualquier eje coordenado es una línea recta) queda definida si se conocen dos puntos que están sobre ella.

Solución:

Ecuación del eje x      y = 0

Ecuación del eje y      x = 0

Para darle respuesta a la pregunta podemos seguir el siguiente procedimiento:

  • Escogemos dos puntos arbitrarios sobre el eje x, por ejemplo

P ( 2 ; 0 )  y Q ( 5 ; 0 )         ( todos los puntos sobre el eje x tienen coordenada y = 0.

Según la cual  m = (y₂ - y₁)/ ( x₂ - x₁ )    m = 0

  • Usamos la ecuación pendiente-Intercepto

y = m×x + b         donde m es la pendiente y b el intercepto con el eje y

y entonces tenemos:

  • m = 0    b ( 0 ; 0 )
  • Por sustitución en la ecuación pendiente-intercepto

y = 0

Procediendo de forma similar obtendremos la ecuación del eje y

P´( 0 ; 4 )     Q´( 0 : 8 ) entonces

y = m×x + b

En este caso, la pendiente no es definida ( tang 90° ) y b es de nuevo el punto b ( 0 ; 0).

A partir de  que todos y cada uno de los puntos sobre el eje y son  de valor 0 para x, concluímos que  ecuación del eje y es

x = 0

Enlaces de interés:brainly.com/question/21135669?

8 0
1 year ago
Angelica had 8 more pairs of shoes than her mom. Together they have 30 pairs of shoes. How many pair of shoes does each one have
MAVERICK [17]

Answer:

The answer to your question is Angelica 19, her mom = 11

Step-by-step explanation:

Data

Angelica has 8 more than her mother

total number of shoes = 30 pairs

The Number of pairs Angelica has = a = ?

The Number of pairs her mother has = m = ?

Process

1.- Write two equation that help to solve this problem

        a = m + 8                    Equation l

        a + m = 30                  Equation ll

2.- Solve the system of equations by substitution

Substitute equation l in equation ll

       (m + 8) + m = 30

-Solve for m

        m + 8 + m = 30

        2m = 30 - 8

        2m = 22

          m = 22/2

          m = 11

3.- Find a

          a = 11 + 8

          a = 19

4.- Conclusion

 Angelica has 19 pairs of shoes and her mom has 11

5 0
3 years ago
,,,,,,,,,,,,,,,,,,,,,,,,,
jonny [76]

Answer:

side

Step-by-step explanation:

if your talking about the dark purple it would be the side but if your talking about the other one it would be front i cant rlly tell by the colors.

i hope this helps:)

8 0
2 years ago
ANSWER FOR BRAINLIEST AND PLEEASEE EXPLAIN :)
trapecia [35]

Answer: I think Value of x is 8 I’m not sure

3 0
3 years ago
Read 2 more answers
The equation y = 5.5x represents a proportional relationship What is the constant of proportionality?
Vadim26 [7]

The constant of proportionality is 5.5

Step-by-step explanation:

y = kx

k = constant of proportionality

y = <u>5.5</u>x

4 0
3 years ago
Read 2 more answers
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