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lianna [129]
3 years ago
12

25 POINTS!

Mathematics
1 answer:
lubasha [3.4K]3 years ago
8 0
To solve this you'll plug in the ordered pairs and if the answer is equal then it is the answer.

A: 2 = 3(0) - 2
     2 = 0 - 2 
     2 ≠ -2

B: 1 = 3(1) - 2
     1 = 3 - 2
      1 = 1

C: 1 = 3(-3) - 2
      1 = -9 - 2
       1 ≠ -11

D: 0 = 3(2) - 2
     0 = 6 - 2
     0 ≠ 4

So the answer choice B is the solution to the given equation.

Hope this helps :)
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Resuelve:
jok3333 [9.3K]

Answer:

A partir del problemas vamos a crear una ecuación donde X es una docena de huevos y Y una libra de mantequilla

entonces: 4 docenas de huevos y 3 libras de mantequilla es igual a 14.100

en mi primera ecuación seria: 4X + 3Y = 14.100

ahora haremos la segunda ecuacion: tres docenas y 1 libra de mantequilla

en mi segunda ecuación seria: 3X + 1Y = 8.700 el plan es sumar las dos ecuaciones pero yo quiero que al sumarlas la variable "Y" desaparezca así que mi segunda ecuación la voy a multiplicar pór (-3) quedándome todo así:

primera ecuación: 4X + 3Y = 14.100

segunda ecuacion multiplicada por -3: -9X - 3Y = -26.1

al sumarlas obtengo como resultado: -5X = -12

resolviendo esa ecuacion obtengo que X=  

X=2.4

luego reemplazas X en la primera ecuación: 4X + 3Y = 14.100

reemplazando seria: 4 x (2.4) + 3Y =14.100

9.6 + 3Y = 14.1000

3Y= 14.100 - 9.6

Y=  

Y=1.5

entonces concluimos que la docena de huevos cuesta 2.4 $ y la libra de mantequilla 1.5 $

Step-by-step explanation:

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$89.79 scooter; 7 1/4% tax.
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After tax, it would be, 89.79 + 89.79*29/4*100 = 89.79 + 2589.41/400

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Step-by-step explanation:

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